USN-5188-1: Keepalived vulnerability

Publication date

13 December 2021

Overview

Keepalived could be made to access-control bypass if it received a specially crafted message.


Packages

  • keepalived - Failover and monitoring daemon for LVS clusters

Details

It was discovered that Keepalived incorrectly handled certain messages.
An attacker could possibly use this issue to access-control bypass.

It was discovered that Keepalived incorrectly handled certain messages.
An attacker could possibly use this issue to access-control bypass.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
21.10 impish keepalived –  1:2.1.5-0.2ubuntu1.1
21.04 hirsute keepalived –  1:2.1.5-0.2ubuntu0.1
20.04 focal keepalived –  1:2.0.19-2ubuntu0.1
18.04 bionic keepalived –  1:1.3.9-1ubuntu0.18.04.3

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