[USN-4918-3] ClamAV regression

========================================================================== Ubuntu Security Notice USN-4918-3 May 03, 2021
clamav regression ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 21.04 – Ubuntu 20.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS – Ubuntu 16.04 ESM – Ubuntu 14.04 ESM
Summary:
USN-4918-1 introduced a regression in ClamAV that could cause it to fail to scan.
Software Description: – clamav: Anti-virus utility for Unix
Details:
USN-4918-1 fixed vulnerabilities in ClamAV. The updated package could fail to properly scan in some situations. This update fixes the problem.
Original advisory 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 21.04: clamav 0.103.2+dfsg-1ubuntu0.21.04.1 libclamav9 0.103.2+dfsg-1ubuntu0.21.04.1
Ubuntu 20.10: clamav 0.103.2+dfsg-0ubuntu0.20.10.2 libclamav9 0.103.2+dfsg-0ubuntu0.20.10.2
Ubuntu 20.04 LTS: clamav 0.103.2+dfsg-0ubuntu0.20.04.2 libclamav9 0.103.2+dfsg-0ubuntu0.20.04.2
Ubuntu 18.04 LTS: clamav 0.103.2+dfsg-0ubuntu0.18.04.2 libclamav9 0.103.2+dfsg-0ubuntu0.18.04.2
Ubuntu 16.04 ESM: clamav 0.103.2+dfsg-0ubuntu0.16.04.1+esm1 libclamav9 0.103.2+dfsg-0ubuntu0.16.04.1+esm1
Ubuntu 14.04 ESM: clamav 0.103.2+dfsg-0ubuntu0.14.04.1+esm2 libclamav9 0.103.2+dfsg-0ubuntu0.14.04.1+esm2
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: ubuntu.com/security/notices/USN-4918-3 ubuntu.com/security/notices/USN-4918-1 launchpad.net/bugs/1926300
Package Information: launchpad.net/ubuntu/+source/clamav/0.103.2+dfsg-1ubuntu0.21.04.1 launchpad.net/ubuntu/+source/clamav/0.103.2+dfsg-0ubuntu0.20.10.2 launchpad.net/ubuntu/+source/clamav/0.103.2+dfsg-0ubuntu0.20.04.2 launchpad.net/ubuntu/+source/clamav/0.103.2+dfsg-0ubuntu0.18.04.2