Advisory Published

USN-6794-1: FRR vulnerabilities

First published: Tue May 28 2024(Updated: )

It was discovered that FRR incorrectly handled certain malformed BGP and OSPF packets. A remote attacker could use this issue to cause FRR to crash, resulting in a denial of service, or possibly execute arbitrary code.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/frr<8.4.4-1.1ubuntu6.1
8.4.4-1.1ubuntu6.1
Ubuntu=24.04
All of
ubuntu/frr<8.4.4-1.1ubuntu1.4
8.4.4-1.1ubuntu1.4
Ubuntu=23.10
All of
ubuntu/frr<8.1-1ubuntu1.10
8.1-1ubuntu1.10
Ubuntu=22.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6794-1?

    USN-6794-1 is classified as a high severity vulnerability due to the potential for denial of service and arbitrary code execution.

  • How do I fix USN-6794-1?

    To fix USN-6794-1, upgrade to one of the patched versions of the FRR package specified in the advisory.

  • Which versions of Ubuntu are affected by USN-6794-1?

    USN-6794-1 affects Ubuntu versions 24.04, 23.10, and 22.04 with specific FRR versions.

  • Can USN-6794-1 lead to data breach?

    While USN-6794-1 primarily results in denial of service, there is a risk of unauthorized access that could potentially lead to a data breach.

  • Is there a workaround for USN-6794-1 until I can apply a patch?

    No specific workarounds are recommended for USN-6794-1; patching the FRR software is the best mitigation.

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