USN-1179-1: ClamAV vulnerability

28 July 2011

clamav vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 11.04


An attacker could send crafted input to ClamAV and cause it to crash.

Software Description

  • clamav - anti-virus utility for Unix - command-line interface


It was discovered that the hash processing code in libclamav improperly handled messages with certain hashes. This could allow a remote attacker to craft a document that could cause clamav to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 11.04
libclamav6 - 0.97+dfsg-2ubuntu1.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.