USN-6436-1: FRR vulnerabilities

Published Oct 18, 2023
·
Updated

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)

Affected Software

6 affected componentsFixes available
All of the following
ubuntu/frr<8.4.2-1ubuntu1.4
8.4.2-1ubuntu1.4
Ubuntu Ubuntu=23.04
All of the following
ubuntu/frr<8.1-1ubuntu1.6
8.1-1ubuntu1.6
Ubuntu Ubuntu=22.04
All of the following
ubuntu/frr<7.2.1-1ubuntu0.2+esm1
7.2.1-1ubuntu0.2+esm1
Ubuntu Ubuntu=20.04

Event History

Oct 18, 2023
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What is the vulnerability ID for USN-6436-1?

The vulnerability ID for USN-6436-1 is CVE-2023-41358.

2

What is the severity of CVE-2023-41358?

The severity of CVE-2023-41358 is not mentioned in the provided information. Please refer to the official security advisory for more details.

3

How can a remote attacker exploit CVE-2023-41358?

A remote attacker can exploit CVE-2023-41358 by using the FRR's improper attribute length check in NRLI to cause a denial of service.

4

What software is affected by USN-6436-1?

The FRR package versions 8.4.2-1ubuntu1.4, 8.1-1ubuntu1.6, and 7.2.1-1ubuntu0.2+esm1 are affected by USN-6436-1.

5

How can I remediate the FRR vulnerabilities?

To remediate the FRR vulnerabilities, update your FRR package to the recommended versions provided by the vendor.

Contact

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