[USN-1258-1] ClamAV vulnerability

Jamie Strandboge jamie at canonical.com
Thu Nov 10 18:47:05 UTC 2011


==========================================================================
Ubuntu Security Notice USN-1258-1
November 10, 2011

clamav vulnerability
==========================================================================

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

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

ClamAV could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- clamav: Anti-virus utility for Unix

Details:

Stephane Chazelas discovered the bytecode engine of ClamAV improperly
handled recursion under certain circumstances. This could allow a remote
attacker to craft a file 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 11.10:
  libclamav6                      0.97.3+dfsg-1ubuntu0.11.10.1

Ubuntu 11.04:
  libclamav6                      0.97.3+dfsg-1ubuntu0.11.04.1

Ubuntu 10.10:
  libclamav6                      0.96.5+dfsg-1ubuntu1.10.10.3

Ubuntu 10.04 LTS:
  libclamav6                      0.96.5+dfsg-1ubuntu1.10.04.3

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

References:
  http://www.ubuntu.com/usn/usn-1258-1
  CVE-2011-3627

Package Information:
  https://launchpad.net/ubuntu/+source/clamav/0.97.3+dfsg-1ubuntu0.11.10.1
  https://launchpad.net/ubuntu/+source/clamav/0.97.3+dfsg-1ubuntu0.11.04.1
  https://launchpad.net/ubuntu/+source/clamav/0.96.5+dfsg-1ubuntu1.10.10.3
  https://launchpad.net/ubuntu/+source/clamav/0.96.5+dfsg-1ubuntu1.10.04.3


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