1. Ubuntu Security Notices
  2. USN-6481-1

USN-6481-1: FRR vulnerabilities

Publication date

15 November 2023

Overview

FRR could be made to crash if it received specially crafted network traffic.

Releases

Packages

  • frr - FRRouting suite of internet protocols

Details

It was discovered that FRR incorrectly handled certain malformed NLRI data.
A remote attacker could possibly use this issue to cause FRR to crash,
resulting in a denial of service. (CVE-2023-46752)

It was discovered that FRR incorrectly handled certain BGP UPDATE messages.
A remote attacker could possibly use this issue to cause FRR to crash,
resulting in a denial of service. (CVE-2023-46753)

It was discovered that FRR incorrectly handled certain malformed NLRI data.
A remote attacker could possibly use this issue to cause FRR to crash,
resulting in a denial of service. (CVE-2023-46752)

It was discovered that FRR incorrectly handled certain BGP UPDATE messages.
A remote attacker could possibly use this issue to cause FRR to crash,
resulting in a denial of service. (CVE-2023-46753)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
23.10 mantic frr –  8.4.4-1.1ubuntu1.1
23.04 lunar frr –  8.4.2-1ubuntu1.5
22.04 jammy frr –  8.1-1ubuntu1.7

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References

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