Common Weakness Enumeration
CWE-755
DiscouragedImproper Handling of Exceptional Conditions
Abstraction: Class · Status: Incomplete
The product does not handle or incorrectly handles an exceptional condition.
703 vulnerabilities reference this CWE, most recent first.
CVE-2024-32001 (GCVE-0-2024-32001)
Vulnerability from cvelistv5 – Published: 2024-04-10 22:25 – Updated: 2024-08-02 01:59
VLAI
EPSS
VEX
Title
SpiceDB: LookupSubjects may return partial results if a specific kind of relation is used
Summary
SpiceDB is a graph database purpose-built for storing and evaluating access control data. Use of a relation of the form: `relation folder: folder | folder#parent` with an arrow such as `folder->view` can cause LookupSubjects to only return the subjects found under subjects for either `folder` or `folder#parent`. This bug only manifests if the same subject type is used multiple types in a relation, relationships exist for both subject types and an arrow is used over the relation. Any user making a negative authorization decision based on the results of a LookupSubjects request with version before v1.30.1 is affected. Version 1.30.1 contains a patch for the issue. As a workaround, avoid using LookupSubjects for negative authorization decisions and/or avoid using the broken schema.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-26 17:22 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/authzed/spicedb/security/advis… | x_refsource_CONFIRM |
| https://github.com/authzed/spicedb/commit/a244ed1… | x_refsource_MISC |
| https://github.com/authzed/spicedb/releases/tag/v1.30.1 | x_refsource_MISC |
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CVE-2024-32000 (GCVE-0-2024-32000)
Vulnerability from cvelistv5 – Published: 2024-04-12 20:02 – Updated: 2024-08-02 01:59
VLAI
EPSS
VEX
Title
Truncated content of messages can be leaked from matrix-appservice-irc
Summary
matrix-appservice-irc is a Node.js IRC bridge for the Matrix messaging protocol. matrix-appservice-irc before version 2.0.0 can be exploited to leak the truncated body of a message if a malicious user sends a Matrix reply to an event ID they don't have access to. As a precondition to the attack, the malicious user needs to know the event ID of the message they want to leak, as well as to be joined to both the Matrix room and the IRC channel it is bridged to. The message reply containing the leaked message content is visible to IRC channel members when this happens. matrix-appservice-irc 2.0.0 checks whether the user has permission to view an event before constructing a reply. Administrators should upgrade to this version. It's possible to limit the amount of information leaked by setting a reply template that doesn't contain the original message. See these lines `601-604` in the configuration file linked.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-10 20:18 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/matrix-org/matrix-appservice-i… | x_refsource_CONFIRM |
| https://github.com/matrix-org/matrix-appservice-i… | x_refsource_MISC |
| https://github.com/matrix-org/matrix-appservice-i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| matrix-org | matrix-appservice-irc |
Affected:
< 2.0.0
|
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CVE-2024-30382 (GCVE-0-2024-30382)
Vulnerability from cvelistv5 – Published: 2024-04-12 15:22 – Updated: 2024-08-02 01:32
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: RPD crash when CoS-based forwarding (CBF) policy is configured
Summary
An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to send a specific routing update, causing an rpd core due to memory corruption, leading to a Denial of Service (DoS).
This issue can only be triggered when the system is configured for CoS-based forwarding (CBF) with a policy map containing a cos-next-hop-map action (see below).
This issue affects:
Junos OS:
* all versions before 20.4R3-S10,
* from 21.2 before 21.2R3-S8,
* from 21.3 before 21.3R3,
* from 21.4 before 21.4R3,
* from 22.1 before 22.1R2;
Junos OS Evolved:
* all versions before 21.2R3-S8-EVO,
* from 21.3 before 21.3R3-EVO,
* from 21.4 before 21.4R3-EVO,
* from 22.1 before 22.1R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-12 17:23 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA79174 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S10
(semver)
Affected: 21.2 , < 21.2R3-S8 (semver) Affected: 21.3 , < 21.3R3 (semver) Affected: 21.4 , < 21.4R3 (semver) Affected: 22.1 , < 22.1R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S8-EVO
(semver)
Affected: 21.3 , < 21.3R3-EVO (semver) Affected: 21.4 , < 21.4R3-EVO (semver) Affected: 22.1 , < 22.1R2-EVO (semver) |
|
| juniper | junos_os_evolved |
Affected:
21.3 , < 21.3R3-EVO
(custom)
cpe:2.3:o:juniper:junos_os_evolved:21.3:-:*:*:*:*:*:* |
|
| juniper | junos_os_evolved |
Affected:
21.4 , < 21.4R3-EVO
(custom)
cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:* |
|
| juniper | junos_os_evolved |
Affected:
22.1 , < 22.1R2-EVO
(custom)
cpe:2.3:o:juniper:junos_os_evolved:22.1:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
21.2 , < 21.2R3-S8
(custom)
cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
21.3 , < 21.3R3
(custom)
cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
21.4 , < 21.4R3
(custom)
cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
22.1 , < 22.1R2
(custom)
cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:* |
|
| juniper | junos |
Affected:
0 , < 20.4R3-S10
(custom)
cpe:2.3:o:juniper:junos:-:*:*:*:*:*:*:* |
Date Public
2024-04-10 16:00
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CVE-2024-30380 (GCVE-0-2024-30380)
Vulnerability from cvelistv5 – Published: 2024-04-16 20:04 – Updated: 2024-08-02 01:32
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: l2cpd crash upon receipt of a specific TLV
Summary
An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS), which causes the l2cpd process to crash by sending a specific TLV.
The l2cpd process is responsible for layer 2 control protocols, such as STP, RSTP, MSTP, VSTP, ERP, and LLDP. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP, leading to a Denial of Service. Continued receipt and processing of this specific TLV will create a sustained Denial of Service (DoS) condition.
This issue affects:
Junos OS:
all versions before 20.4R3-S9,
from 21.2 before 21.2R3-S7,
from 21.3 before 21.3R3-S5,
from 21.4 before 21.4R3-S4,
from 22.1 before 22.1R3-S4,
from 22.2 before 22.2R3-S2,
from 22.3 before 22.3R2-S2, 22.3R3-S1,
from 22.4 before 22.4R2-S2, 22.4R3,
from 23.2 before 23.2R1-S1, 23.2R2;
Junos OS Evolved:
all versions before 21.2R3-S7,
from 21.3 before 21.3R3-S5-EVO,
from 21.4 before 21.4R3-S5-EVO,
from 22.1 before 22.1R3-S4-EVO,
from 22.2 before 22.2R3-S2-EVO,
from 22.3 before 22.3R2-S2-EVO, 22.3R3-S1-EVO,
from 22.4 before 22.4R2-S2-EVO, 22.4R3-EVO,
from 23.2 before 23.2R1-S1-EVO, 23.2R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-01 18:16 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA79171 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S7 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S4 (semver) Affected: 22.1 , < 22.1R3-S4 (semver) Affected: 22.2 , < 22.2R3-S2 (semver) Affected: 22.3 , < 22.3R2-S2, 22.3R3-S1 (semver) Affected: 22.4 , < 22.4R2-S2, 22.4R3 (semver) Affected: 23.2 , < 23.2R1-S1, 23.2R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S7-EVO
(semver)
Affected: 21.3 , < 21.3R3-S5-EVO (semver) Affected: 21.4 , < 21.4R3-S5-EVO (semver) Affected: 22.1 , < 22.1R3-S4-EVO (semver) Affected: 22.2 , < 22.2R3-S2-EVO (semver) Affected: 22.3 , < 22.3R2-S2-EVO, 22.3R3-S1-EVO (semver) Affected: 22.4 , < 22.4R2-S2-EVO, 22.4R3-EVO (semver) Affected: 23.2 , < 23.2R1-S1-EVO, 23.2R2-EVO (semver) |
Date Public
2024-04-10 16:00
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CVE-2024-28869 (GCVE-0-2024-28869)
Vulnerability from cvelistv5 – Published: 2024-04-12 21:08 – Updated: 2024-08-02 00:56
VLAI
EPSS
VEX
Title
Possible denial of service vulnerability with Content-length header in Traefik
Summary
Traefik is an HTTP reverse proxy and load balancer. In affected versions sending a GET request to any Traefik endpoint with the "Content-length" request header results in an indefinite hang with the default configuration. This vulnerability can be exploited by attackers to induce a denial of service. This vulnerability has been addressed in version 2.11.2 and 3.0.0-rc5. Users are advised to upgrade. For affected versions, this vulnerability can be mitigated by configuring the readTimeout option.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-18 18:26 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/traefik/traefik/security/advis… | x_refsource_CONFIRM |
| https://github.com/traefik/traefik/commit/240b83b… | x_refsource_MISC |
| https://doc.traefik.io/traefik/routing/entrypoint… | x_refsource_MISC |
| https://github.com/traefik/traefik/releases/tag/v2.11.2 | x_refsource_MISC |
| https://github.com/traefik/traefik/releases/tag/v… | x_refsource_MISC |
Impacted products
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CVE-2024-23325 (GCVE-0-2024-23325)
Vulnerability from cvelistv5 – Published: 2024-02-09 22:47 – Updated: 2024-08-27 16:33
VLAI
EPSS
VEX
Title
Envoy crashes when using an address type that isn’t supported by the OS
Summary
Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-13 15:17 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
| https://github.com/envoyproxy/envoy/commit/bacd31… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.29.0, < 1.29.1
Affected: >= 1.28.0, < 1.28.1 Affected: >= 1.27.0, < 1.27.3 Affected: < 1.26.7 |
|
| envoyproxy | envoy |
Affected:
1.29.0 , < 1.29.1
(custom)
Affected: 1.28.0 , < 1.28.1 (custom) Affected: 1.27.0 , < 1.27.3 (custom) Affected: 0 , < 1.26.7 (custom) cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
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CVE-2024-21907 (GCVE-0-2024-21907)
Vulnerability from cvelistv5 – Published: 2024-01-03 15:23 – Updated: 2026-07-14 22:54
VLAI
EPSS
VEX
Title
Improper Handling of Exceptional Conditions in Newtonsoft.Json
Summary
Newtonsoft.Json before version 13.0.1 is affected by a mishandling of exceptional conditions vulnerability. Crafted data that is passed to the JsonConvert.DeserializeObject method may trigger a StackOverflow exception resulting in denial of service. Depending on the usage of the library, an unauthenticated and remote attacker may be able to cause the denial of service condition.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-21 19:31 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/JamesNK/Newtonsoft.Json/issues/2457 | issue-tracking |
| https://github.com/JamesNK/Newtonsoft.Json/pull/2462 | issue-tracking |
| https://github.com/JamesNK/Newtonsoft.Json/commit… | patch |
| https://alephsecurity.com/2018/10/22/StackOverflo… | related |
| https://alephsecurity.com/vulns/aleph-2018004 | related |
| https://security.snyk.io/vuln/SNYK-DOTNET-NEWTONS… | related |
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Impacted products
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CVE-2024-21610 (GCVE-0-2024-21610)
Vulnerability from cvelistv5 – Published: 2024-04-12 14:55 – Updated: 2025-05-19 09:22
VLAI
EPSS
VEX
Title
Junos OS: If in a scaled CoS scenario information on CoS state is gathered mgd processes get stuck
Summary
An Improper Handling of Exceptional Conditions vulnerability in the Class of Service daemon (cosd) of Juniper Networks Junos OS allows an authenticated, network-based attacker with low privileges to cause a limited Denial of Service (DoS).
In a scaled CoS scenario with 1000s of interfaces, when specific low privileged commands, received over NETCONF, SSH or telnet, are handled by cosd on behalf of mgd, the respective child management daemon (mgd) processes will get stuck. In case of (Netconf over) SSH this leads to stuck SSH sessions, so that when the connection-limit for SSH is reached, new sessions can't be established anymore. A similar behavior will be seen for telnet etc.
Stuck mgd processes can be monitored by executing the following command:
user@host> show system processes extensive | match mgd | match sbwait
This issue affects Juniper Networks Junos OS:
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R3;
* 23.2 versions earlier than 23.2R1-S2, 23.2R2.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-31 17:38 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
2 references
| URL | Tags |
|---|---|
| http://supportportal.juniper.net/JSA75751 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-descriptionx_transferred |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S7 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S5 (semver) Affected: 22.1 , < 22.1R3-S4 (semver) Affected: 22.2 , < 22.2R3-S3 (semver) Affected: 22.3 , < 22.3R3-S2 (semver) Affected: 22.4 , < 22.4R3 (semver) Affected: 23.2 , < 23.2R1-S2, 23.2R2 (semver) |
Date Public
2024-04-10 16:00
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CVE-2024-21587 (GCVE-0-2024-21587)
Vulnerability from cvelistv5 – Published: 2024-01-12 00:51 – Updated: 2025-06-03 14:05
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Memory leak in bbe-smgd process if BFD liveness detection for DHCP subscribers is enabled
Summary
An Improper Handling of Exceptional Conditions vulnerability in the broadband edge subscriber management daemon (bbe-smgd) of Juniper Networks Junos OS on MX Series allows an attacker directly connected to the vulnerable system who repeatedly flaps DHCP subscriber sessions to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting bbe-smgd.
This issue only occurs if BFD liveness detection for DHCP subscribers is enabled. Systems without BFD liveness detection enabled are not vulnerable to this issue.
Indication of the issue can be observed by periodically executing the 'show system processes extensive' command, which will indicate an increase in memory allocation for bbe-smgd. A small amount of memory is leaked every time a DHCP subscriber logs in, which will become visible over time, ultimately leading to memory starvation.
user@junos> show system processes extensive | match bbe-smgd
13071 root 24 0 415M 201M select 0 0:41 7.28% bbe-smgd{bbe-smgd}
13071 root 20 0 415M 201M select 1 0:04 0.00% bbe-smgd{bbe-smgd}
...
user@junos> show system processes extensive | match bbe-smgd
13071 root 20 0 420M 208M select 0 4:33 0.10% bbe-smgd{bbe-smgd}
13071 root 20 0 420M 208M select 0 0:12 0.00% bbe-smgd{bbe-smgd}
...
This issue affects Juniper Networks Junos OS on MX Series:
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R2-S2, 22.4R3;
* 23.2 versions earlier than 23.2R1-S1, 23.2R2.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 15:55 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA75725 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S7 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S5 (semver) Affected: 22.1 , < 22.1R3-S4 (semver) Affected: 22.2 , < 22.2R3-S3 (semver) Affected: 22.3 , < 22.3R3-S2 (semver) Affected: 22.4 , < 22.4R2-S2, 22.4R3 (semver) Affected: 23.2 , < 23.2R1-S1, 23.2R2 (semver) |
Date Public
2024-01-10 17:00
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CVE-2024-21585 (GCVE-0-2024-21585)
Vulnerability from cvelistv5 – Published: 2024-01-12 00:50 – Updated: 2024-11-14 14:40
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: BGP session flaps on NSR-enabled devices can cause rpd crash
Summary
An Improper Handling of Exceptional Conditions vulnerability in BGP session processing of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker, using specific timing outside the attacker's control, to flap BGP sessions and cause the routing protocol daemon (rpd) process to crash and restart, leading to a Denial of Service (DoS) condition. Continued BGP session flapping will create a sustained Denial of Service (DoS) condition.
This issue only affects routers configured with non-stop routing (NSR) enabled. Graceful Restart (GR) helper mode, enabled by default, is also required for this issue to be exploitable.
Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.
When the BGP session flaps on the NSR-enabled router, the device enters GR-helper/LLGR-helper mode due to the peer having negotiated GR/LLGR-restarter capability and the backup BGP requests for replication of the GR/LLGR-helper session, master BGP schedules, and initiates replication of GR/LLGR stale routes to the backup BGP. In this state, if the BGP session with the BGP peer comes up again, unsolicited replication is initiated for the peer without cleaning up the ongoing GR/LLGR-helper mode replication. This parallel two instances of replication for the same peer leads to the assert if the BGP session flaps again.
This issue affects:
Juniper Networks Junos OS
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S1;
* 22.4 versions earlier than 22.4R2-S2, 22.4R3;
* 23.2 versions earlier than 23.2R1-S1, 23.2R2.
Juniper Networks Junos OS Evolved
* All versions earlier than 21.3R3-S5-EVO;
* 21.4 versions earlier than 21.4R3-S5-EVO;
* 22.1 versions earlier than 22.1R3-S4-EVO;
* 22.2 versions earlier than 22.2R3-S3-EVO;
* 22.3 versions earlier than 22.3R3-S1-EVO;
* 22.4 versions earlier than 22.4R2-S2-EVO, 22.4R3-EVO;
* 23.2 versions earlier than 23.2R1-S1-EVO, 23.2R2-EVO.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-14 14:40 UTC
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA75723 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
| https://supportportal.juniper.net/s/article/MX-GR… | product |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S7 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S5 (semver) Affected: 22.1 , < 22.1R3-S4 (semver) Affected: 22.2 , < 22.2R3-S3 (semver) Affected: 22.3 , < 22.3R3-S1 (semver) Affected: 22.4 , < 22.4R2-S2, 22.4R3 (semver) Affected: 23.2 , < 23.2R1-S1, 23.2R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.3R3-S5-EVO
(semver)
Affected: 21.4 , < 21.4R3-S5-EVO (semver) Affected: 22.1 , < 22.1R3-S4-EVO (semver) Affected: 22.2 , < 22.2R3-S3-EVO (semver) Affected: 22.3 , < 22.3R3-S1-EVO (semver) Affected: 22.4 , < 22.4R2-S2-EVO, 22.4R3-EVO (semver) Affected: 23.2 , < 23.2R1-S1-EVO, 23.2R2-EVO (semver) |
Date Public
2024-01-10 17:00
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"value": "\n\n\u003cp\u003eAn Improper Handling of Exceptional Conditions vulnerability in BGP session processing of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker, using specific timing outside the attacker\u0027s control, to flap BGP sessions and cause the routing protocol daemon (rpd) process to crash and restart, leading to a Denial of Service (DoS) condition. Continued BGP session flapping will create a sustained Denial of Service (DoS) condition.\u003c/p\u003e\u003cp\u003eThis issue only affects routers configured with non-stop routing (NSR) enabled. Graceful Restart (GR) helper mode, enabled by default, is also required for this issue to be exploitable.\u003cbr\u003e\u003c/p\u003eNote: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.\u003cbr\u003e\u003cp\u003eWhen the BGP session flaps on the NSR-enabled router, the device enters GR-helper/LLGR-helper mode due to the peer having negotiated GR/LLGR-restarter capability and the backup BGP requests for replication of the GR/LLGR-helper session, master BGP schedules, and initiates replication of GR/LLGR stale routes to the backup BGP. In this state, if the BGP session with the BGP peer comes up again, unsolicited replication is initiated for the peer without cleaning up the ongoing GR/LLGR-helper mode replication. This parallel two instances of replication for the same peer leads to the assert if the BGP session flaps again.\u003c/p\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions earlier than 20.4R3-S9;\u003c/li\u003e\u003cli\u003e21.2 versions earlier than 21.2R3-S7;\u003c/li\u003e\u003cli\u003e21.3 versions earlier than 21.3R3-S5;\u003c/li\u003e\u003cli\u003e21.4 versions earlier than 21.4R3-S5;\u003c/li\u003e\u003cli\u003e22.1 versions earlier than 22.1R3-S4;\u003c/li\u003e\u003cli\u003e22.2 versions earlier than 22.2R3-S3;\u003c/li\u003e\u003cli\u003e22.3 versions earlier than 22.3R3-S1;\u003c/li\u003e\u003cli\u003e22.4 versions earlier than 22.4R2-S2, 22.4R3;\u003c/li\u003e\u003cli\u003e23.2 versions earlier than 23.2R1-S1, 23.2R2.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS Evolved\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions earlier than 21.3R3-S5-EVO;\u003c/li\u003e\u003cli\u003e21.4 versions earlier than 21.4R3-S5-EVO;\u003c/li\u003e\u003cli\u003e22.1 versions earlier than 22.1R3-S4-EVO;\u003c/li\u003e\u003cli\u003e22.2 versions earlier than 22.2R3-S3-EVO;\u003c/li\u003e\u003cli\u003e22.3 versions earlier than 22.3R3-S1-EVO;\u003c/li\u003e\u003cli\u003e22.4 versions earlier than 22.4R2-S2-EVO, 22.4R3-EVO;\u003c/li\u003e\u003cli\u003e23.2 versions earlier than 23.2R1-S1-EVO, 23.2R2-EVO.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\n\n"
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"value": "\nAn Improper Handling of Exceptional Conditions vulnerability in BGP session processing of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker, using specific timing outside the attacker\u0027s control, to flap BGP sessions and cause the routing protocol daemon (rpd) process to crash and restart, leading to a Denial of Service (DoS) condition. Continued BGP session flapping will create a sustained Denial of Service (DoS) condition.\n\nThis issue only affects routers configured with non-stop routing (NSR) enabled. Graceful Restart (GR) helper mode, enabled by default, is also required for this issue to be exploitable.\n\n\nNote: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.\nWhen the BGP session flaps on the NSR-enabled router, the device enters GR-helper/LLGR-helper mode due to the peer having negotiated GR/LLGR-restarter capability and the backup BGP requests for replication of the GR/LLGR-helper session, master BGP schedules, and initiates replication of GR/LLGR stale routes to the backup BGP. In this state, if the BGP session with the BGP peer comes up again, unsolicited replication is initiated for the peer without cleaning up the ongoing GR/LLGR-helper mode replication. This parallel two instances of replication for the same peer leads to the assert if the BGP session flaps again.\n\nThis issue affects:\n\nJuniper Networks Junos OS\n\n\n\n * All versions earlier than 20.4R3-S9;\n * 21.2 versions earlier than 21.2R3-S7;\n * 21.3 versions earlier than 21.3R3-S5;\n * 21.4 versions earlier than 21.4R3-S5;\n * 22.1 versions earlier than 22.1R3-S4;\n * 22.2 versions earlier than 22.2R3-S3;\n * 22.3 versions earlier than 22.3R3-S1;\n * 22.4 versions earlier than 22.4R2-S2, 22.4R3;\n * 23.2 versions earlier than 23.2R1-S1, 23.2R2.\n\n\n\n\nJuniper Networks Junos OS Evolved\n\n\n\n * All versions earlier than 21.3R3-S5-EVO;\n * 21.4 versions earlier than 21.4R3-S5-EVO;\n * 22.1 versions earlier than 22.1R3-S4-EVO;\n * 22.2 versions earlier than 22.2R3-S3-EVO;\n * 22.3 versions earlier than 22.3R3-S1-EVO;\n * 22.4 versions earlier than 22.4R2-S2-EVO, 22.4R3-EVO;\n * 23.2 versions earlier than 23.2R1-S1-EVO, 23.2R2-EVO.\n\n\n\n\n\n\n"
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"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"description": "CWE-755 Improper Handling of Exceptional Conditions",
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"dateUpdated": "2024-01-30T23:32:17.643Z",
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"value": "\u003cp\u003eThe following software releases have been updated to resolve this specific issue: \u003c/p\u003e\u003cp\u003eJunos OS: 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S1, 22.4R2-S2, 22.4R3, 23.1R2, 23.2R1-S1, 23.2R2, 23.3R1, and all subsequent releases.\u003c/p\u003e\u003cp\u003eJunos OS Evolved: 21.3R3-S5-EVO, 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S3-EVO, 22.3R3-S1-EVO, 22.4R2-S2-EVO, 22.4R3-EVO, 23.1R2-EVO, 23.2R1-S1-EVO, 23.2R2-EVO, 23.3R1-EVO, and all subsequent releases.\u003c/p\u003e"
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"value": "Initial Publication"
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"time": "2024-01-16T17:00:00.000Z",
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"time": "2024-01-30T17:00:00.000Z",
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"title": "Junos OS and Junos OS Evolved: BGP session flaps on NSR-enabled devices can cause rpd crash",
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"value": "Graceful Restart (GR) helper mode and Long-Lived Graceful Restart (LLGR) helper mode can be disabled to prevent this issue.\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e\u0026nbsp; [edit protocols bgp graceful-restart]\u003cbr\u003e\u0026nbsp; disable;\u003cbr\u003e\u003cbr\u003e\u0026nbsp; [edit protocols bgp graceful-restart long-lived receiver]\u003cbr\u003e\u0026nbsp; disable;\u003c/tt\u003e"
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"value": "Graceful Restart (GR) helper mode and Long-Lived Graceful Restart (LLGR) helper mode can be disabled to prevent this issue.\n\n\u00a0 [edit protocols bgp graceful-restart]\n\u00a0 disable;\n\n\u00a0 [edit protocols bgp graceful-restart long-lived receiver]\n\u00a0 disable;"
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"cveId": "CVE-2024-21585",
"datePublished": "2024-01-12T00:50:59.105Z",
"dateReserved": "2023-12-27T19:38:25.702Z",
"dateUpdated": "2024-11-14T14:40:50.210Z",
"state": "PUBLISHED"
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.