var-200908-0261
Vulnerability from variot
Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path. Cisco IOS XR Is AS Service operation disruption due to incomplete number-related processing (DoS) There is a vulnerability that becomes a condition.Service disruption by remotely authenticated user (DoS) There is a possibility of being put into a state. An attacker can exploit this issue to cause the BGP process to crash, creating a denial-of-service condition. This issue is being tracked by Cisco Bug ID CSCtb12726. Cisco IOS is an operating system developed by Cisco in the United States for its network equipment. Both the number of AS numbers required to prepend and the resulting crashes exceeded normal limits in a production environment. When the BGP process of an affected device crashes due to such an oversized AS path forwarding, no log message is generated before the crash
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.