USN-1482-2: ClamAV regression

20 June 2012

clamav regression

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

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 11.04

Summary

ClamAV could improperly detect malware if it opened a specially crafted file.

Software Description

  • clamav - Anti-virus utility for Unix

Details

USN-1482-1 fixed vulnerabilities in ClamAV. The updated packages could fail to install in certain situations. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that ClamAV incorrectly handled certain malformed TAR archives. A remote attacker could create a specially-crafted TAR file containing malware that could escape being detected. (CVE-2012-1457, CVE-2012-1459)

It was discovered that ClamAV incorrectly handled certain malformed CHM files. A remote attacker could create a specially-crafted CHM file containing malware that could escape being detected. (CVE-2012-1458)

Update instructions

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

Ubuntu 12.04 LTS
clamav - 0.97.5+dfsg-1ubuntu0.12.04.2
clamav-daemon - 0.97.5+dfsg-1ubuntu0.12.04.2
libclamav6 - 0.97.5+dfsg-1ubuntu0.12.04.2
Ubuntu 11.10
clamav - 0.97.5+dfsg-1ubuntu0.11.10.2
clamav-daemon - 0.97.5+dfsg-1ubuntu0.11.10.2
libclamav6 - 0.97.5+dfsg-1ubuntu0.11.10.2
Ubuntu 11.04
clamav - 0.97.5+dfsg-1ubuntu0.11.04.2
clamav-daemon - 0.97.5+dfsg-1ubuntu0.11.04.2
libclamav6 - 0.97.5+dfsg-1ubuntu0.11.04.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References