VAR-200708-0165
Vulnerability from variot - Updated: 2025-04-10 21:52Unspecified vulnerability in Cisco IOS and Cisco IOS XR 12.x up to 12.3, including some versions before 12.3(15) and 12.3(14)T, allows remote attackers to obtain sensitive information (partial packet contents) or cause a denial of service (router or component crash) via crafted IPv6 packets with a Type 0 routing header. IOS is prone to a denial-of-service vulnerability. An unspecified vulnerability exists in Cisco IOS and Cisco IOS XR Releases 12.x through 12.3 and other releases prior to 12.3(15) and 12.3(14)T.
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The vulnerability is caused due to an error when processing IPv6 packets with a Type 0 routing header.
Successful exploitation requires that the device is configured to use IPv6.
The following products are reportedly not affected: * Cisco PIX and ASA Appliances * Cisco Firewall Services Module (FWSM) * Cisco MDS
SOLUTION: Apply updated versions. See vendor advisory for more details.
Filter packets that contain Type 0 routing headers. See Workarounds section in vendor advisory.
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor, who also credits Tom Cross, IBM ISS X-Force.
ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-IPv6-leak.shtml
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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