Ubuntu alert USN-6481-1 (frr)

From:
             
 
Marc Deslauriers <marc.deslauriers@canonical.com>
To:
             
 
"ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com>
Subject:
             
 
[USN-6481-1] FRR vulnerabilities
Date:
             
 
Wed, 15 Nov 2023 10:48:07 -0500
Message-ID:
             
 
<309c76ae-67bd-40ba-9c07-75aef116036d@canonical.com>
==========================================================================
Ubuntu Security Notice USN-6481-1
November 15, 2023

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

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

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS

Summary:

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

Software Description:
- 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)

Update instructions:

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

Ubuntu 23.10:
   frr                             8.4.4-1.1ubuntu1.1

Ubuntu 23.04:
   frr                             8.4.2-1ubuntu1.5

Ubuntu 22.04 LTS:
   frr                             8.1-1ubuntu1.7

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

References:
   https://ubuntu.com/security/notices/USN-6481-1
   CVE-2023-46752, CVE-2023-46753

Package Information:
   https://launchpad.net/ubuntu/+source/frr/8.4.4-1.1ubuntu1.1
   https://launchpad.net/ubuntu/+source/frr/8.4.2-1ubuntu1.5
   https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.7