A libtirpc security update has been released for Ubuntu Linux 20.04 LTS and 22.04 LTS.

USN-5538-1: libtirpc vulnerability

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Ubuntu Security Notice USN-5538-1
July 28, 2022

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

libtirpc could be made to denial of service if it received a specially
crafted input.

Software Description:
- libtirpc: transport-independent RPC library - common files

Details:

It was discovered that libtirpc incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.

Update instructions:

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

Ubuntu 22.04 LTS:
libtirpc3 1.3.2-2ubuntu0.1

Ubuntu 20.04 LTS:
libtirpc3 1.2.5-1ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-5538-1
CVE-2021-46828

Package Information:
  https://launchpad.net/ubuntu/+source/libtirpc/1.3.2-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/libtirpc/1.2.5-1ubuntu0.1