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USN-5423-1: ClamAV vulnerabilities

17 May 2022

Several security issues were fixed in ClamAV.

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Releases

Packages

  • 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
execute arbitrary code. (CVE-2022-20792)

Alexander Patrakov and Antoine Gatineau discovered that ClamAV incorrectly
handled the scan verdict cache check. A remote attacker could possibly use
this issue to cause ClamAV to crash, resulting in a denial of service, or
possibly execute arbitrary code.(CVE-2022-20796)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 22.04
Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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

Related notices

  • USN-5423-2: clamav-base, libclamav9, clamdscan, clamav-milter, clamav-docs, clamav-testfiles, clamav-freshclam, clamav, clamav-daemon, libclamav-dev