==========================================================================
Ubuntu Security Notice USN-6436-1
October 18, 2023

frr vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in FRR.

Software Description:
- 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)

Update instructions:

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

Ubuntu 23.04:
  frr                             8.4.2-1ubuntu1.4

Ubuntu 22.04 LTS:
  frr                             8.1-1ubuntu1.6

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
  frr                             7.2.1-1ubuntu0.2+esm1

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

References:
  https://ubuntu.com/security/notices/USN-6436-1
  CVE-2023-41358, CVE-2023-41360, CVE-2023-41909

Package Information:
  https://launchpad.net/ubuntu/+source/frr/8.4.2-1ubuntu1.4
  https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.6

Ubuntu 6436-1: FRR vulnerabilities

October 18, 2023
Several security issues were fixed in FRR.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in FRR. Software Description: - 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)

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: frr 8.4.2-1ubuntu1.4 Ubuntu 22.04 LTS: frr 8.1-1ubuntu1.6 Ubuntu 20.04 LTS (Available with Ubuntu Pro): frr 7.2.1-1ubuntu0.2+esm1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6436-1

CVE-2023-41358, CVE-2023-41360, CVE-2023-41909

Severity
Ubuntu Security Notice USN-6436-1

Package Information

https://launchpad.net/ubuntu/+source/frr/8.4.2-1ubuntu1.4 https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.6

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