Ubuntu 22.04 LTS USN-5423-1 Critical: ClamAV Denial Of Service

ubuntu

May 17, 2022

Several security issues were fixed in ClamAV.

Summary

Several security issues were fixed in ClamAV.

Software Description:

- clamav: Anti-virus utility for Unix

Details:

Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files.

A remote attacker could possibly use this issue to cause ClamAV to stop

responding, resulting in a denial of service. (CVE-2022-20770)

Michał Dardas discovered that ClamAV incorrectly handled parsing TIFF

files. A remote attacker could possibly use this issue to cause ClamAV to

stop responding, resulting in a denial of service. (CVE-2022-20771)

Michał Dardas discovered that ClamAV incorrectly handled parsing HTML

files. A remote attacker could possibly use this issue to cause ClamAV to

consume resources, resulting in a denial of service. (CVE-2022-20785)

Michał Dardas discovered that ClamAV incorrectly handled loading the

signature database. A remote attacker could possibly use this issue to

cause ClamAV to crash, resulting in a denial of service, or possibly

e...

Read the Full Advisory

Topics Covered

security advisory denial of service critical software update security fix ubuntu clamav

Update Instructions

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

Ubuntu 22.04 LTS:
  clamav                          0.103.6+dfsg-0ubuntu0.22.04.1

Ubuntu 21.10:
  clamav                          0.103.6+dfsg-0ubuntu0.21.10.1

Ubuntu 20.04 LTS:
  clamav                          0.103.6+dfsg-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  clamav                          0.103.6+dfsg-0ubuntu0.18.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.