[USN-4918-2] ClamAV vulnerabilities

========================================================================== Ubuntu Security Notice USN-4918-2 April 20, 2021
clamav vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in ClamAV.
Software Description: – clamav: Anti-virus utility for Unix
Details:
USN-4918-1 fixed several vulnerabilities in ClamAV. This update provides the corresponding update for Ubuntu 14.04 ESM. 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 14.04 ESM: clamav 0.103.2+dfsg-0ubuntu0.14.04.1+esm1
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-4918-2 ubuntu.com/security/notices/USN-4918-1 CVE-2021-1252, CVE-2021-1404, CVE-2021-1405