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CVE-2012-0383 (GCVE-0-2012-0383)
Vulnerability from cvelistv5 – Published: 2012-03-29 10:00 – Updated: 2024-08-06 18:23- n/a
| URL | Tags |
|---|---|
| http://osvdb.org/80701 | vdb-entryx_refsource_OSVDB |
| http://www.securityfocus.com/bid/52758 | vdb-entryx_refsource_BID |
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
| http://secunia.com/advisories/48515 | third-party-advisoryx_refsource_SECUNIA |
| http://www.securitytracker.com/id?1026864 | vdb-entryx_refsource_SECTRACK |
| http://tools.cisco.com/security/center/content/Ci… | vendor-advisoryx_refsource_CISCO |
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FKIE_CVE-2012-0383
Vulnerability from fkie_nvd - Published: 2012-03-29 11:01 - Updated: 2026-06-16 23:37{
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GHSA-FHR5-WQ74-M4F9
Vulnerability from github – Published: 2022-05-04 00:29 – Updated: 2022-05-04 00:29Memory leak in the NAT feature in Cisco IOS 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (memory consumption, and device hang or reload) via SIP packets that require translation, related to a "memory starvation vulnerability," aka Bug ID CSCti35326.
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GSD-2012-0383
Vulnerability from gsd - Updated: 2023-12-13 01:20{
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},
{
"name": "80701",
"refsource": "OSVDB",
"tags": [],
"url": "http://osvdb.org/80701"
},
{
"name": "48515",
"refsource": "SECUNIA",
"tags": [],
"url": "http://secunia.com/advisories/48515"
},
{
"name": "1026864",
"refsource": "SECTRACK",
"tags": [],
"url": "http://www.securitytracker.com/id?1026864"
},
{
"name": "52758",
"refsource": "BID",
"tags": [],
"url": "http://www.securityfocus.com/bid/52758"
},
{
"name": "ciscoios-nat-feature-dos(74432)",
"refsource": "XF",
"tags": [],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74432"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
}
},
"lastModifiedDate": "2017-08-29T01:30Z",
"publishedDate": "2012-03-29T11:01Z"
}
}
}
VAR-201203-0210
Vulnerability from variot - Updated: 2025-04-11 22:56Memory leak in the NAT feature in Cisco IOS 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (memory consumption, and device hang or reload) via SIP packets that require translation, related to a "memory starvation vulnerability," aka Bug ID CSCti35326. Cisco IOS is a popular Internet operating system. SIP NAT is performed by default on UDP port 5060. This port can be configured using the ip nat service sip udp port global configuration command. Successful exploits may allow an attacker to cause an affected device to consume excessive amounts of memory, resulting in a denial-of-service condition. This issue is being tracked by Cisco Bug ID CSCti35326. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
Cisco Security Advisory: Cisco IOS Software Network Address Translation Vulnerability
Advisory ID: cisco-sa-20120328-nat
Revision 1.0
For Public Release 2012 March 28 16:00 UTC (GMT)
+--------------------------------------------------------------------
Summary
The Cisco IOS Software Network Address Translation (NAT) feature contains a denial of service (DoS) vulnerability in the translation of Session Initiation Protocol (SIP) packets.
The vulnerability is caused when packets in transit on the vulnerable device require translation on the SIP payload.
Cisco has released free software updates that address this vulnerability. A workaround that mitigates the vulnerability is available.
This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-nat
Note: The March 28, 2012, Cisco IOS Software Security Advisory bundled publication includes nine Cisco Security Advisories. Each advisory lists the Cisco IOS Software releases that correct the vulnerability or vulnerabilities detailed in the advisory as well as the Cisco IOS Software releases that correct all vulnerabilities in the March 2012 bundled publication.
Individual publication links are in "Cisco Event Response: Semi-Annual Cisco IOS Software Security Advisory Bundled Publication" at the following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar12.html
Affected Products
Vulnerable Products +------------------
Cisco devices that are running Cisco IOS Software are vulnerable when they are configured for NAT and contain support for NAT for Session Initiation Protocol.
There are two methods to determine if a device is configured for NAT:
- Determine if NAT is active on a running device.
- Determine if NAT commands are included in the device configuration.
Determine if NAT is Active on a Running Device +---------------------------------------------
The preferred method to verify whether NAT is enabled on a Cisco IOS device is to log in to the device and issue the "show ip nat statistics" command. If NAT is active, the sections "Outside interfaces" and "Inside interfaces" will each include at least one interface. The following example shows a device on which the NAT feature is active:
Router#show ip nat statistics
Total translations: 2 (0 static, 2 dynamic; 0 extended)
Outside interfaces: Serial0
Inside interfaces: Ethernet1
Hits: 135 Misses: 5
Expired translations: 2
Dynamic mappings:
-- Inside Source
access-list 1 pool mypool refcount 2
pool mypool: netmask 255.255.255.0
start 192.168.10.1 end 192.168.10.254
type generic, total addresses 14, allocated 2 (14%), misses 0
Depending on the Cisco IOS Software release, the interface lists can be in the lines following the "Outside interfaces" and "Inside interfaces". In releases that support the "section" filter on "show" commands, the administrator can determine whether NAT is active by using the "show ip nat statistics | section interfaces" command, as illustrated in the following example:
Router> show ip nat statistics | section interfaces
Outside interfaces:
GigabitEthernet0/0
Inside interfaces:
GigabitEthernet0/1
Router>
Determine if NAT Commands are Included in the Device Configuration +-----------------------------------------------------------------
Alternatively, to determine whether NAT has been enabled in the Cisco IOS Software configuration, either the "ip nat inside" or "ip nat outside" commands must be present in different interfaces, or in the case of the NAT Virtual Interface, the "ip nat enable" interface command will be present.
Determine the Cisco IOS Software Release +---------------------------------------
To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the "show version" command to display the system banner. Other Cisco devices do not have the "show version" command or may provide different output.
The following example identifies a Cisco product that is running Cisco IOS Software Release 15.0(1)M1 with an installed image name of C3900-UNIVERSALK9-M:
Router> show version Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 17:17 by prod_rel_team
!--- output truncated
Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS and NX-OS Software Reference Guide" at:
http://www.cisco.com/web/about/security/intelligence/ios-ref.html
Products Confirmed Not Vulnerable +--------------------------------
No other Cisco products are currently known to be affected by this vulnerability.
Vulnerability Scoring Details
Cisco has scored the vulnerability in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this security advisory is in accordance with CVSS version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability severity and helps organizations determine the urgency and priority of a response.
Cisco has provided a base and temporal score. Customers can also compute environmental scores that help determine the impact of the vulnerability in their own networks.
Cisco has provided additional information regarding CVSS at the following link:
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to compute the environmental impact for individual networks at the following link:
http://intellishield.cisco.com/security/alertmanager/cvss
- CSCti35326 ("Cisco IOS Software NAT SIP Memory Starvation Vulnerability")
CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete
CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed
Impact
Successful exploitation of this vulnerability may cause incrementing use of memory that will not be released until the device is reloaded. If a particular train is vulnerable, the earliest releases that contain the fix are listed in the First Fixed Release column. The First Fixed Release for All Advisories in the March 2012 Bundled Publication column lists the earliest possible releases that correct all the published vulnerabilities in the Cisco IOS Software Security Advisory bundled publication. Cisco recommends upgrading to the latest available release, where possible. This tool is available on the Cisco Security Intelligence Operations (SIO) portal at:
http://tools.cisco.com/security/center/selectIOSVersion.x
+------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |----------+-------------------------------------------------| | Affected | |First Fixed Release for All | |12.0-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |------------------------------------------------------------| | There are no affected 12.0 based releases | |------------------------------------------------------------| | Affected | |First Fixed Release for All | |12.2-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |------------------------------------------------------------| | There are no affected 12.2 based releases | |------------------------------------------------------------| | Affected | |First Fixed Release for All | |12.3-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |------------------------------------------------------------| | There are no affected 12.3 based releases | |------------------------------------------------------------| | Affected | |First Fixed Release for All | |12.4-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |----------+--------------------+----------------------------| |12.4 |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| | |Releases up to and |Vulnerable; contact your | | |including 12.4(24) |support organization per the| |12.4GC |GC3a are not |instructions in Obtaining | | |vulnerable. |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4JA |Not vulnerable |12.4(23c)JA4 | | | |12.4(25e)JA | |----------+--------------------+----------------------------| |12.4JAX |Not vulnerable |Vulnerable; First fixed in | | | |Release 12.4JA | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JDA |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JDC |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JDD |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JDE |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JHA |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JHB |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JHC |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JK |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4JL |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4JX |Not vulnerable |Vulnerable; First fixed in | | | |Release 12.4JA | |----------+--------------------+----------------------------| |12.4JY |Not vulnerable |Vulnerable; First fixed in | | | |Release 12.4JA | |----------+--------------------+----------------------------| |12.4JZ |Not vulnerable |Vulnerable; First fixed in | | | |Release 12.4JA | |----------+--------------------+----------------------------| | |Only releases 12.4 |12.4(22)MD3; Available on | |12.4MD |(24)MD5 and 12.4(24)|30-MAR-12 | | |MD6 are vulnerable. | | |----------+--------------------+----------------------------| | |Releases 12.4(24) | | | |MDA5 and prior are | | |12.4MDA |not vulnerable; |12.4(24)MDA11 | | |first fixed in 12.2 | | | |(24)MDA11 | | |----------+--------------------+----------------------------| |12.4MDB |12.4(24)MDB4 |12.4(24)MDB5a | |----------+--------------------+----------------------------| |12.4MDC |Not vulnerable |Not vulnerable | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4MR |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4MRA |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4MRB |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4SW |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| | |Only releases 12.4 |12.4(15)T17 | |12.4T |(24)T5 and 12.4(24) |12.4(24)T7 | | |T6 are vulnerable. | | |----------+--------------------+----------------------------| |12.4XA |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XB |Not vulnerable |Vulnerable; First fixed in | | | |Release 12.4T | |----------+--------------------+----------------------------| |12.4XC |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XD |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XE |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XF |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XG |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XJ |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XK |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4XL |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4XM |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4XN |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4XP |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4XQ |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XR |Not vulnerable |Vulnerable; First fixed in | | | |Release 12.4T | |----------+--------------------+----------------------------| |12.4XT |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4XV |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4XW |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XY |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4XZ |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| |12.4YA |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.0M | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4YB |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |12.4YD |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |12.4YE |Not vulnerable |12.4(24)YE3d | |----------+--------------------+----------------------------| |12.4YG |Not vulnerable |12.4(24)YG4 | |----------+--------------------+----------------------------| | Affected | |First Fixed Release for All | |15.0-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |----------+--------------------+----------------------------| | |Only releases 15.0 | | |15.0M |(1)M4 and 15.0(1)M5 |15.0(1)M8 | | |are vulnerable. | | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |15.0MR |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |15.0MRA |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | |Not vulnerable | | | |Cisco IOS XE |15.0(1)S5 | |15.0S |devices: Please see |Cisco IOS XE devices: Please| | |Cisco IOS XE |see Cisco IOS XE Software | | |Software |Availability | | |Availability | | |----------+--------------------+----------------------------| |15.0SA |Not vulnerable |Not vulnerable | |----------+--------------------+----------------------------| |15.0SE |Not vulnerable |15.0(1)SE1 | |----------+--------------------+----------------------------| | |Not vulnerable | | | |Cisco IOS XE |15.0(2)SG2 | |15.0SG |devices: Please see |Cisco IOS XE devices: Please| | |Cisco IOS XE |see Cisco IOS XE Software | | |Software |Availability | | |Availability | | |----------+--------------------+----------------------------| |15.0SY |Not vulnerable |15.0(1)SY1 | |----------+--------------------+----------------------------| |15.0XA |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.1T | |----------+--------------------+----------------------------| | |Cisco IOS XE | | | |devices: Please see |Cisco IOS XE devices: Please| |15.0XO |Cisco IOS-XE |see Cisco IOS-XE Software | | |Software |Availability | | |Availability | | |----------+--------------------+----------------------------| | Affected | |First Fixed Release for All | |15.1-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |----------+--------------------+----------------------------| |15.1EY |Not vulnerable |15.1(2)EY2 | |----------+--------------------+----------------------------| |15.1GC |Not vulnerable |15.1(2)GC2 | |----------+--------------------+----------------------------| |15.1M |Not vulnerable |15.1(4)M4; Available on | | | |30-MAR-12 | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |15.1MR |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| | |Not vulnerable | | | |Cisco IOS XE |15.1(3)S2 | |15.1S |devices: Please see |Cisco IOS XE devices: Please| | |Cisco IOS XE |see Cisco IOS XE Software | | |Software |Availability | | |Availability | | |----------+--------------------+----------------------------| | |Not vulnerable | | | |Cisco IOS XE |Not vulnerable | |15.1SG |devices: Please see |Cisco IOS XE devices: Please| | |Cisco IOS XE |see Cisco IOS XE Software | | |Software |Availability | | |Availability | | |----------+--------------------+----------------------------| | | |Vulnerable; contact your | | | |support organization per the| |15.1SNG |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of | | | |this advisory. | |----------+--------------------+----------------------------| |15.1SNH |Not vulnerable |Not vulnerable | |----------+--------------------+----------------------------| | |15.1(1)T4 | | |15.1T |15.1(2)T5; Available|15.1(3)T3 | | |on 27-APR-12 | | | |15.1(3)T | | |----------+--------------------+----------------------------| |15.1XB |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.1T | |----------+--------------------+----------------------------| | Affected | |First Fixed Release for All | |15.2-Based|First Fixed Release |Advisories in the March 2012| | Releases | |Cisco IOS Software Security | | | |Advisory Bundled Publication| |------------------------------------------------------------| | There are no affected 15.2 based releases | +------------------------------------------------------------+
Cisco IOS XE Software +--------------------
Cisco IOS XE Software is not affected by the vulnerability that is disclosed in this document.
Obtaining Fixed Software
Cisco has released free software updates that address the vulnerability|vulnerabilities described in this advisory. Prior to deploying software, customers are advised to consult their maintenance providers or check the software for feature set compatibility and known issues that are specific to their environments.
Customers may only install and expect support for feature sets they have purchased. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as set forth at http://www.cisco.com/public/sw-center/sw-usingswc.shtml.
Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades.
Customers with Service Contracts +-------------------------------
Customers with contracts should obtain upgraded software through their regular update channels. For most customers, upgrades should be obtained through the Software Center on Cisco.com at http://www.cisco.com.
Customers Using Third-Party Support Organizations +------------------------------------------------
Customers with Cisco products that are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers, should contact that organization for assistance with the appropriate course of action.
The effectiveness of any workaround or fix depends on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Because of the variety of affected products and releases, customers should consult their service providers or support organizations to ensure that any applied workaround or fix is the most appropriate in the intended network before it is deployed.
Customers Without Service Contracts +----------------------------------
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC):
- +1 800 553 2447 (toll free from within North America)
- +1 408 526 7209 (toll call from anywhere in the world)
- e-mail: tac@cisco.com
Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Customers without service contracts should request free upgrades through the TAC.
Refer to Cisco Worldwide Contacts at http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, instructions, and e-mail addresses for support in various languages.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
This vulnerability was found during troubleshooting of TAC service requests.
Status of This Notice: Final
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.
Distribution
This advisory is posted on Cisco Security Intelligence Operations at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-nat
Additionally, a text version of this advisory is clear signed with the Cisco PSIRT PGP key and circulated among the following e-mail addresses:
- cust-security-announce@cisco.com
- first-bulletins@lists.first.org
- bugtraq@securityfocus.com
- vulnwatch@vulnwatch.org
- cisco@spot.colorado.edu
- cisco-nsp@puck.nether.net
- full-disclosure@lists.grok.org.uk
Future updates of this advisory, if any, will reside on Cisco.com but may not be announced on mailing lists. Users can monitor this advisory's URL for any updates.
Revision History
+------------------------------------------------------------+ | Revision 1.0 | 2012-March-28 | Initial public release. | +------------------------------------------------------------+
Cisco Security Procedures
Complete information about reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco is available on Cisco.com at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. This web page includes instructions for press inquiries regarding Cisco Security Advisories. All Cisco Security Advisories are available at http://www.cisco.com/go/psirt.
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Become a PSI 3.0 beta tester! Test-drive the new beta version and tell us what you think about its extended automatic update function and significantly enhanced user-interface. Download it here! http://secunia.com/psi_30_beta_launch
TITLE: Cisco IOS NAT SIP Processing Denial of Service Vulnerability
SECUNIA ADVISORY ID: SA48515
VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/48515/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=48515
RELEASE DATE: 2012-03-29
DISCUSS ADVISORY: http://secunia.com/advisories/48515/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s)
http://secunia.com/advisories/48515/
ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS
https://ca.secunia.com/?page=viewadvisory&vuln_id=48515
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING
http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION: A vulnerability has been reported in Cisco IOS, which can be exploited by malicious people to cause a DoS (Denial of Service).
Please see the vendor's advisory for a list of affected versions.
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor
ORIGINAL ADVISORY: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-nat
OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/
DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/
EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/
EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/
EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/
About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor
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"data": "Memory leak in the NAT feature in Cisco IOS 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (memory consumption, and device hang or reload) via SIP packets that require translation, related to a \"memory starvation vulnerability,\" aka Bug ID CSCti35326. Cisco IOS is a popular Internet operating system. SIP NAT is performed by default on UDP port 5060. This port can be configured using the ip nat service sip udp port global configuration command. \nSuccessful exploits may allow an attacker to cause an affected device to consume excessive amounts of memory, resulting in a denial-of-service condition. \nThis issue is being tracked by Cisco Bug ID CSCti35326. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nCisco Security Advisory: Cisco IOS Software Network Address Translation\nVulnerability\n\nAdvisory ID: cisco-sa-20120328-nat\n\nRevision 1.0\n\nFor Public Release 2012 March 28 16:00 UTC (GMT)\n\n+--------------------------------------------------------------------\n\nSummary\n=======\n\nThe Cisco IOS Software Network Address Translation (NAT) feature\ncontains a denial of service (DoS) vulnerability in the translation of\nSession Initiation Protocol (SIP) packets. \n\nThe vulnerability is caused when packets in transit on the vulnerable\ndevice require translation on the SIP payload. \n\nCisco has released free software updates that address this\nvulnerability. A workaround that mitigates the vulnerability is\navailable. \n\nThis advisory is available at the following link:\n\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-nat\n\n\nNote: The March 28, 2012, Cisco IOS Software Security Advisory bundled\npublication includes nine Cisco Security Advisories. Each advisory\nlists the Cisco IOS Software releases that correct the vulnerability\nor vulnerabilities detailed in the advisory as well as the Cisco IOS\nSoftware releases that correct all vulnerabilities in the March 2012\nbundled publication. \n\nIndividual publication links are in \"Cisco Event Response: Semi-Annual\nCisco IOS Software Security Advisory Bundled Publication\" at the\nfollowing link:\n\nhttp://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar12.html\n\n\nAffected Products\n=================\n\n\nVulnerable Products\n+------------------\n\nCisco devices that are running Cisco IOS Software are vulnerable when\nthey are configured for NAT and contain support for NAT for Session\nInitiation Protocol. \n\nThere are two methods to determine if a device is configured for\nNAT: \n\n * Determine if NAT is active on a running device. \n * Determine if NAT commands are included in the device\n configuration. \n\nDetermine if NAT is Active on a Running Device\n+---------------------------------------------\n\nThe preferred method to verify whether NAT is enabled on a Cisco IOS\ndevice is to log in to the device and issue the \"show ip nat statistics\"\ncommand. If NAT is active, the sections \"Outside interfaces\" and \"Inside\ninterfaces\" will each include at least one interface. The following\nexample shows a device on which the NAT feature is active:\n\n Router#show ip nat statistics\n\n Total translations: 2 (0 static, 2 dynamic; 0 extended)\n Outside interfaces: Serial0\n Inside interfaces: Ethernet1\n Hits: 135 Misses: 5\n Expired translations: 2\n Dynamic mappings:\n -- Inside Source\n access-list 1 pool mypool refcount 2\n pool mypool: netmask 255.255.255.0\n start 192.168.10.1 end 192.168.10.254\n type generic, total addresses 14, allocated 2 (14%), misses 0\n\nDepending on the Cisco IOS Software release, the interface lists can be\nin the lines following the \"Outside interfaces\" and \"Inside interfaces\". \nIn releases that support the \"section\" filter on \"show\" commands, the\nadministrator can determine whether NAT is active by using the \"show\nip nat statistics | section interfaces\" command, as illustrated in the\nfollowing example:\n\n Router\u003e show ip nat statistics | section interfaces\n Outside interfaces:\n GigabitEthernet0/0\n Inside interfaces:\n GigabitEthernet0/1\n Router\u003e\n\nDetermine if NAT Commands are Included in the Device Configuration\n+-----------------------------------------------------------------\n\nAlternatively, to determine whether NAT has been enabled in the Cisco\nIOS Software configuration, either the \"ip nat inside\" or \"ip nat\noutside\" commands must be present in different interfaces, or in the\ncase of the NAT Virtual Interface, the \"ip nat enable\" interface command\nwill be present. \n\n\nDetermine the Cisco IOS Software Release\n+---------------------------------------\n\nTo determine the Cisco IOS Software release that is running on a Cisco\nproduct, administrators can log in to the device and issue the \"show\nversion\" command to display the system banner. Other Cisco devices\ndo not have the \"show version\" command or may provide different output. \n\nThe following example identifies a Cisco product that is running\nCisco IOS Software Release 15.0(1)M1 with an installed image name of\nC3900-UNIVERSALK9-M:\n\nRouter\u003e show version \nCisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1)\nTechnical Support: http://www.cisco.com/techsupport\nCopyright (c) 1986-2009 by Cisco Systems, Inc. \nCompiled Wed 02-Dec-09 17:17 by prod_rel_team\n\n!--- output truncated \n\nAdditional information about Cisco IOS Software release naming\nconventions is available in \"White Paper: Cisco IOS and NX-OS\nSoftware Reference Guide\" at:\n\nhttp://www.cisco.com/web/about/security/intelligence/ios-ref.html\n\nProducts Confirmed Not Vulnerable\n+--------------------------------\n\nNo other Cisco products are currently known to be affected by this\nvulnerability. \n\nVulnerability Scoring Details\n=============================\n\nCisco has scored the vulnerability in this advisory based on the\nCommon Vulnerability Scoring System (CVSS). The CVSS scoring in this\nsecurity advisory is in accordance with CVSS version 2.0. \n\nCVSS is a standards-based scoring method that conveys vulnerability\nseverity and helps organizations determine the urgency and priority\nof a response. \n\nCisco has provided a base and temporal score. Customers can also\ncompute environmental scores that help determine the impact of the\nvulnerability in their own networks. \n\nCisco has provided additional information regarding CVSS at the\nfollowing link:\n\nhttp://www.cisco.com/web/about/security/intelligence/cvss-qandas.html\n\nCisco has also provided a CVSS calculator to compute the environmental\nimpact for individual networks at the following link:\n\nhttp://intellishield.cisco.com/security/alertmanager/cvss\n\n\n* CSCti35326 (\"Cisco IOS Software NAT SIP Memory Starvation Vulnerability\")\n\nCVSS Base Score - 7.8\n Access Vector - Network\n Access Complexity - Low\n Authentication - None\n Confidentiality Impact - None\n Integrity Impact - None\n Availability Impact - Complete\n\nCVSS Temporal Score - 6.4\n Exploitability - Functional\n Remediation Level - Official-Fix\n Report Confidence - Confirmed\n\n\nImpact\n======\n\nSuccessful exploitation of this vulnerability may cause incrementing\nuse of memory that will not be released until the device is reloaded. If a particular train is vulnerable, the\nearliest releases that contain the fix are listed in the First Fixed\nRelease column. The First Fixed Release for All Advisories in the\nMarch 2012 Bundled Publication column lists the earliest possible\nreleases that correct all the published vulnerabilities in the Cisco\nIOS Software Security Advisory bundled publication. Cisco recommends\nupgrading to the latest available release, where possible. This tool is available on the Cisco Security Intelligence\nOperations (SIO) portal at:\n\nhttp://tools.cisco.com/security/center/selectIOSVersion.x\n\n\n+------------------------------------------------------------+\n| Major | Availability of Repaired Releases |\n| Release | |\n|----------+-------------------------------------------------|\n| Affected | |First Fixed Release for All |\n|12.0-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|------------------------------------------------------------|\n| There are no affected 12.0 based releases |\n|------------------------------------------------------------|\n| Affected | |First Fixed Release for All |\n|12.2-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|------------------------------------------------------------|\n| There are no affected 12.2 based releases |\n|------------------------------------------------------------|\n| Affected | |First Fixed Release for All |\n|12.3-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|------------------------------------------------------------|\n| There are no affected 12.3 based releases |\n|------------------------------------------------------------|\n| Affected | |First Fixed Release for All |\n|12.4-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|----------+--------------------+----------------------------|\n|12.4 |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n| |Releases up to and |Vulnerable; contact your |\n| |including 12.4(24) |support organization per the|\n|12.4GC |GC3a are not |instructions in Obtaining |\n| |vulnerable. |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n|12.4JA |Not vulnerable |12.4(23c)JA4 |\n| | |12.4(25e)JA |\n|----------+--------------------+----------------------------|\n|12.4JAX |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 12.4JA |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JDA |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JDC |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JDD |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JDE |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JHA |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JHB |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JHC |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JK |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4JL |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n|12.4JX |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 12.4JA |\n|----------+--------------------+----------------------------|\n|12.4JY |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 12.4JA |\n|----------+--------------------+----------------------------|\n|12.4JZ |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 12.4JA |\n|----------+--------------------+----------------------------|\n| |Only releases 12.4 |12.4(22)MD3; Available on |\n|12.4MD |(24)MD5 and 12.4(24)|30-MAR-12 |\n| |MD6 are vulnerable. | |\n|----------+--------------------+----------------------------|\n| |Releases 12.4(24) | |\n| |MDA5 and prior are | |\n|12.4MDA |not vulnerable; |12.4(24)MDA11 |\n| |first fixed in 12.2 | |\n| |(24)MDA11 | |\n|----------+--------------------+----------------------------|\n|12.4MDB |12.4(24)MDB4 |12.4(24)MDB5a |\n|----------+--------------------+----------------------------|\n|12.4MDC |Not vulnerable |Not vulnerable |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4MR |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4MRA |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n|12.4MRB |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n|12.4SW |Not vulnerable |Vulnerable; 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First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n|12.4XG |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n|12.4XJ |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n|12.4XK |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4XL |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n|12.4XM |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4XN |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; 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First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n|12.4XZ |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n|12.4YA |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.0M |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4YB |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|12.4YD |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n|12.4YE |Not vulnerable |12.4(24)YE3d |\n|----------+--------------------+----------------------------|\n|12.4YG |Not vulnerable |12.4(24)YG4 |\n|----------+--------------------+----------------------------|\n| Affected | |First Fixed Release for All |\n|15.0-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|----------+--------------------+----------------------------|\n| |Only releases 15.0 | |\n|15.0M |(1)M4 and 15.0(1)M5 |15.0(1)M8 |\n| |are vulnerable. | |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|15.0MR |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|15.0MRA |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| |Not vulnerable | |\n| |Cisco IOS XE |15.0(1)S5 |\n|15.0S |devices: Please see |Cisco IOS XE devices: Please|\n| |Cisco IOS XE |see Cisco IOS XE Software |\n| |Software |Availability |\n| |Availability | |\n|----------+--------------------+----------------------------|\n|15.0SA |Not vulnerable |Not vulnerable |\n|----------+--------------------+----------------------------|\n|15.0SE |Not vulnerable |15.0(1)SE1 |\n|----------+--------------------+----------------------------|\n| |Not vulnerable | |\n| |Cisco IOS XE |15.0(2)SG2 |\n|15.0SG |devices: Please see |Cisco IOS XE devices: Please|\n| |Cisco IOS XE |see Cisco IOS XE Software |\n| |Software |Availability |\n| |Availability | |\n|----------+--------------------+----------------------------|\n|15.0SY |Not vulnerable |15.0(1)SY1 |\n|----------+--------------------+----------------------------|\n|15.0XA |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.1T |\n|----------+--------------------+----------------------------|\n| |Cisco IOS XE | |\n| |devices: Please see |Cisco IOS XE devices: Please|\n|15.0XO |Cisco IOS-XE |see Cisco IOS-XE Software |\n| |Software |Availability |\n| |Availability | |\n|----------+--------------------+----------------------------|\n| Affected | |First Fixed Release for All |\n|15.1-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|----------+--------------------+----------------------------|\n|15.1EY |Not vulnerable |15.1(2)EY2 |\n|----------+--------------------+----------------------------|\n|15.1GC |Not vulnerable |15.1(2)GC2 |\n|----------+--------------------+----------------------------|\n|15.1M |Not vulnerable |15.1(4)M4; Available on |\n| | |30-MAR-12 |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|15.1MR |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n| |Not vulnerable | |\n| |Cisco IOS XE |15.1(3)S2 |\n|15.1S |devices: Please see |Cisco IOS XE devices: Please|\n| |Cisco IOS XE |see Cisco IOS XE Software |\n| |Software |Availability |\n| |Availability | |\n|----------+--------------------+----------------------------|\n| |Not vulnerable | |\n| |Cisco IOS XE |Not vulnerable |\n|15.1SG |devices: Please see |Cisco IOS XE devices: Please|\n| |Cisco IOS XE |see Cisco IOS XE Software |\n| |Software |Availability |\n| |Availability | |\n|----------+--------------------+----------------------------|\n| | |Vulnerable; contact your |\n| | |support organization per the|\n|15.1SNG |Not vulnerable |instructions in Obtaining |\n| | |Fixed Software section of |\n| | |this advisory. |\n|----------+--------------------+----------------------------|\n|15.1SNH |Not vulnerable |Not vulnerable |\n|----------+--------------------+----------------------------|\n| |15.1(1)T4 | |\n|15.1T |15.1(2)T5; Available|15.1(3)T3 |\n| |on 27-APR-12 | |\n| |15.1(3)T | |\n|----------+--------------------+----------------------------|\n|15.1XB |Not vulnerable |Vulnerable; First fixed in |\n| | |Release 15.1T |\n|----------+--------------------+----------------------------|\n| Affected | |First Fixed Release for All |\n|15.2-Based|First Fixed Release |Advisories in the March 2012|\n| Releases | |Cisco IOS Software Security |\n| | |Advisory Bundled Publication|\n|------------------------------------------------------------|\n| There are no affected 15.2 based releases |\n+------------------------------------------------------------+\n\n\nCisco IOS XE Software\n+--------------------\n\nCisco IOS XE Software is not affected by the vulnerability that is\ndisclosed in this document. \n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address the\nvulnerability|vulnerabilities described in this advisory. Prior to\ndeploying software, customers are advised to consult their\nmaintenance providers or check the software for feature set\ncompatibility and known issues that are specific to their\nenvironments. \n\nCustomers may only install and expect support for feature\nsets they have purchased. By installing, downloading,\naccessing, or otherwise using such software upgrades, customers\nagree to follow the terms of the Cisco software license at\nhttp://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html,\nor as set forth at\nhttp://www.cisco.com/public/sw-center/sw-usingswc.shtml. \n\nDo not contact psirt@cisco.com or security-alert@cisco.com for\nsoftware upgrades. \n\nCustomers with Service Contracts\n+-------------------------------\n\nCustomers with contracts should obtain upgraded software through their\nregular update channels. For most customers, upgrades should be obtained\nthrough the Software Center on Cisco.com at http://www.cisco.com. \n\nCustomers Using Third-Party Support Organizations\n+------------------------------------------------\n\nCustomers with Cisco products that are provided or maintained through\nprior or existing agreements with third-party support organizations,\nsuch as Cisco Partners, authorized resellers, or service providers,\nshould contact that organization for assistance with the appropriate\ncourse of action. \n\nThe effectiveness of any workaround or fix depends on specific\ncustomer situations, such as product mix, network topology, traffic\nbehavior, and organizational mission. Because of the variety of\naffected products and releases, customers should consult their\nservice providers or support organizations to ensure that any applied\nworkaround or fix is the most appropriate in the intended network\nbefore it is deployed. \n\nCustomers Without Service Contracts\n+----------------------------------\n\nCustomers who purchase directly from Cisco but do not hold a Cisco\nservice contract and customers who make purchases through third-party\nvendors but are unsuccessful in obtaining fixed software through\ntheir point of sale should obtain upgrades by contacting the Cisco\nTechnical Assistance Center (TAC):\n\n * +1 800 553 2447 (toll free from within North America)\n * +1 408 526 7209 (toll call from anywhere in the world)\n * e-mail: tac@cisco.com\n\nCustomers should have the product serial number available and be\nprepared to provide the URL of this advisory as evidence of\nentitlement to a free upgrade. Customers without service contracts\nshould request free upgrades through the TAC. \n\nRefer to Cisco Worldwide Contacts at\nhttp://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html\nfor additional TAC contact information, including localized telephone\nnumbers, instructions, and e-mail addresses for support in various\nlanguages. \n\nExploitation and Public Announcements\n=====================================\n\nThe Cisco Product Security Incident Response Team (PSIRT) is not\naware of any public announcements or malicious use of the\nvulnerability that is described in this advisory. \n\nThis vulnerability was found during troubleshooting of TAC service\nrequests. \n\nStatus of This Notice: Final\n============================\n\nTHIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY\nKIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF\nMERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE\nINFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS\nAT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS\nDOCUMENT AT ANY TIME. \n\nA stand-alone copy or Paraphrase of the text of this document that\nomits the distribution URL in the following section is an\nuncontrolled copy, and may lack important information or contain\nfactual errors. \n\n\nDistribution\n============\n\nThis advisory is posted on Cisco Security Intelligence Operations at\nthe following link:\n\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-nat\n\nAdditionally, a text version of this advisory is clear signed with\nthe Cisco PSIRT PGP key and circulated among the following e-mail\naddresses:\n\n * cust-security-announce@cisco.com\n * first-bulletins@lists.first.org\n * bugtraq@securityfocus.com\n * vulnwatch@vulnwatch.org\n * cisco@spot.colorado.edu\n * cisco-nsp@puck.nether.net\n * full-disclosure@lists.grok.org.uk\n\nFuture updates of this advisory, if any, will reside on Cisco.com but\nmay not be announced on mailing lists. Users can monitor this\nadvisory\u0027s URL for any updates. \n\n\nRevision History\n================\n\n+------------------------------------------------------------+\n| Revision 1.0 | 2012-March-28 | Initial public release. |\n+------------------------------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information about reporting security vulnerabilities in Cisco\nproducts, obtaining assistance with security incidents, and registering\nto receive security information from Cisco is available on Cisco.com at\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. \nThis web page includes instructions for press inquiries\nregarding Cisco Security Advisories. All Cisco Security Advisories are\navailable at http://www.cisco.com/go/psirt. \n\n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1.4.11 (GNU/Linux)\n\niF4EAREIAAYFAk9xNOsACgkQQXnnBKKRMNA9ZgD8DRkOzlhN25SRskCM6aUk2u1W\ni09PHPREp3klD75CsG4A/2bnHzLZ6x4vSf3PzWIJWHXAPGDiZS7+JtOyp9IBbyoI\n=GnDB\n-----END PGP SIGNATURE-----\n. ----------------------------------------------------------------------\n\nBecome a PSI 3.0 beta tester!\nTest-drive the new beta version and tell us what you think about its extended automatic update function and significantly enhanced user-interface. \nDownload it here!\nhttp://secunia.com/psi_30_beta_launch\n\n----------------------------------------------------------------------\n\nTITLE:\nCisco IOS NAT SIP Processing Denial of Service Vulnerability\n\nSECUNIA ADVISORY ID:\nSA48515\n\nVERIFY ADVISORY:\nSecunia.com\nhttp://secunia.com/advisories/48515/\nCustomer Area (Credentials Required)\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=48515\n\nRELEASE DATE:\n2012-03-29\n\nDISCUSS ADVISORY:\nhttp://secunia.com/advisories/48515/#comments\n\nAVAILABLE ON SITE AND IN CUSTOMER AREA:\n * Last Update\n * Popularity\n * Comments\n * Criticality Level\n * Impact\n * Where\n * Solution Status\n * Operating System / Software\n * CVE Reference(s)\n\nhttp://secunia.com/advisories/48515/\n\nONLY AVAILABLE IN CUSTOMER AREA:\n * Authentication Level\n * Report Reliability\n * Secunia PoC\n * Secunia Analysis\n * Systems Affected\n * Approve Distribution\n * Remediation Status\n * Secunia CVSS Score\n * CVSS\n\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=48515\n\nONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:\n * AUTOMATED SCANNING\n\nhttp://secunia.com/vulnerability_scanning/personal/\nhttp://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/\n\nDESCRIPTION:\nA vulnerability has been reported in Cisco IOS, which can be\nexploited by malicious people to cause a DoS (Denial of Service). \n\nPlease see the vendor\u0027s advisory for a list of affected versions. \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor\n\nORIGINAL ADVISORY:\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-nat\n\nOTHER REFERENCES:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nDEEP LINKS:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED DESCRIPTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED SOLUTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXPLOIT:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\nprivate users keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/advisories/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/advisories/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor",
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.