Ubuntu 13.04 USN-1816-1: ClamAV High Risk Denial of Service Issue

ubuntu

May 3, 2013

ClamAV could be made to crash or run programs if it opened a speciallycrafted file.

Summary

ClamAV could be made to crash or run programs if it opened a specially

crafted file.

Software Description:

- clamav: Anti-virus utility for Unix

Details:

It was discovered that ClamAV would incorrectly parse a UPX-packed

executable, leading to possible inappropriate heap reads. An attacker

could use this issue to cause ClamAV to crash, resulting in a denial of

service, or possibly execute arbitrary code. (CVE-2013-2020)

It was discovered that ClamAV would incorrectly parse a PDF document,

potentially writing beyond the size of a static array. An attacker could

use this issue to cause ClamAV to crash, resulting in a denial of service,

or possibly execute arbitrary code. (CVE-2013-2021)

Topics Covered

security advisory denial of service software update high ubuntu clamav threat issue

Update Instructions

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

Ubuntu 13.04:
  clamav                          0.97.8+dfsg-1ubuntu1.13.04.1

Ubuntu 12.10:
  clamav                          0.97.8+dfsg-1ubuntu1.12.10.1

Ubuntu 12.04 LTS:
  clamav                          0.97.8+dfsg-1ubuntu1.12.04.1

Ubuntu 11.10:
  clamav                          0.97.8+dfsg-1ubuntu1.11.10.1

Ubuntu 10.04 LTS:
  clamav                          0.97.8+dfsg-1ubuntu1.10.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart ClamAV to
make all the necessary changes.