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AUSCERT External Security Bulletin Redistribution
USN-4918-2: ClamAV vulnerabilities
21 April 2021
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2021-1405 CVE-2021-1404 CVE-2021-1252
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USN-4918-2: ClamAV vulnerabilities
20 April 2021
Several security issues were fixed in ClamAV.
o Ubuntu 14.04 ESM
o clamav - Anti-virus utility for Unix
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 )
The problem can be corrected by updating your system to the following package
o 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
o USN-4918-1 : clamav
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