USN-4918-1: ClamAV vulnerabilities

Releases

• Ubuntu 20.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• clamav - Anti-virus utility for Unix

Details

It was discovered that ClamAV incorrectly handled parsing Excel documents.
A remote attacker could possibly use this issue to cause ClamAV to hang,
resulting in a denial of service. (CVE-2021-1252)

It was discovered that ClamAV incorrectly handled parsing PDF documents. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2021-1404)

It was discovered that ClamAV incorrectly handled parsing email. A remote
attacker could possibly use this issue to cause ClamAV to crash, resulting
in a denial of service. (CVE-2021-1405)

Update instructions

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

Ubuntu 20.10

• clamav - 0.103.2+dfsg-0ubuntu0.20.10.1

Ubuntu 20.04

• clamav - 0.103.2+dfsg-0ubuntu0.20.04.1

Ubuntu 18.04

• clamav - 0.103.2+dfsg-0ubuntu0.18.04.1

Ubuntu 16.04

• clamav - 0.103.2+dfsg-0ubuntu0.16.04.1

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

References

• CVE-2021-1405
• CVE-2021-1404
• CVE-2021-1252

Related notices

• USN-4918-2: clamav-milter, clamav-docs, clamav, clamav-freshclam, clamav-testfiles, libclamav-dev, clamav-base, libclamav9, clamav-daemon