USN-6436-1: FRR vulnerabilities

18 October 2023

Several security issues were fixed in FRR.

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Releases

Packages

  • frr - FRRouting suite of internet protocols

Details

It was discovered that the FRR did not properly check the attribute length
in NRLI. A remote attacker could possibly use this issue to cause a denial
of service. (CVE-2023-41358)

It was discovered that the FRR did not properly manage memory when reading
initial bytes of ORF header. A remote attacker could possibly use this
issue to cause a denial of service. (CVE-2023-41360)

It was discovered that FRR did not properly validate the attributes in the
BGP FlowSpec functionality. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2023-41909)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04

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

References

Related notices

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