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Ubuntu 23.04: USN-6436-1 Moderate: frr Denial Of Service Issues

ubuntu
Calendar Grey October 18, 2023
Dist Ubuntu Esm H88
Address multiple frr vulnerabilities on Ubuntu systems that pose denial of service risks and ensure security compliance.
Several security issues were fixed in FRR.

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)

Topics%20covered

Topics Covered

security advisory moderate denial of service Ubuntu frr

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

Ubuntu Security Notice USN-6436-1

Topics%20covered

Topics Covered

security advisory moderate denial of service Ubuntu frr

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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