3.3
CWE
119
Advisory Published
Updated

CVE-2009-1154: Buffer Overflow

First published: Fri Aug 21 2009(Updated: )

Cisco IOS XR 3.8.1 and earlier allows remote attackers to cause a denial of service (process crash) via a long BGP UPDATE message, as demonstrated by a message with many AS numbers in the AS Path Attribute.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XRv 9000=3.6.1
Cisco IOS XRv 9000=3.6.2
Cisco IOS XRv 9000=3.4.0
Cisco IOS XRv 9000=3.5.2
Cisco IOS XRv 9000=3.5
Cisco IOS XRv 9000=3.4.2
Cisco IOS XRv 9000=3.7.2
Cisco IOS XRv 9000=3.4
Cisco IOS XRv 9000=3.4.1
Cisco IOS XRv 9000=3.7.0
Cisco IOS XRv 9000=3.4.3
Cisco IOS XRv 9000<=3.8.1
Cisco IOS XRv 9000=3.6.0
Cisco IOS XRv 9000=3.7.1
Cisco IOS XRv 9000=3.5.3
Cisco IOS XRv 9000=3.7.3
Cisco IOS XRv 9000=3.6.3
Cisco IOS XRv 9000=3.8.0
Cisco IOS XRv 9000=3.5.4

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Frequently Asked Questions

  • What is the severity of CVE-2009-1154?

    The severity of CVE-2009-1154 is considered high due to its potential impact on availability.

  • How do I fix CVE-2009-1154?

    To fix CVE-2009-1154, upgrade Cisco IOS XR to version 3.8.2 or later to prevent the denial of service.

  • What systems are affected by CVE-2009-1154?

    CVE-2009-1154 affects multiple versions of Cisco IOS XR, specifically versions up to and including 3.8.1.

  • What type of vulnerability is CVE-2009-1154?

    CVE-2009-1154 is a denial of service vulnerability resulting from improperly handling long BGP UPDATE messages.

  • Can CVE-2009-1154 be exploited remotely?

    Yes, CVE-2009-1154 can be exploited remotely by sending specially crafted BGP UPDATE messages.

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