USN-1482-3: ClamAV regression

Ubuntu Security Notice USN-1482-3

16th August, 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

USN-1482-1 introduced a regression in ClamAV that could cause it to fail to scan certain documents.

Software description

  • clamav - Anti-virus utility for Unix

Details

USN-1482-1 fixed vulnerabilities in ClamAV. The updated package could
fail to properly scan files in some 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 version:

Ubuntu 12.04 LTS:
libclamav6 0.97.5+dfsg-1ubuntu0.12.04.3
clamav 0.97.5+dfsg-1ubuntu0.12.04.3
Ubuntu 11.10:
libclamav6 0.97.5+dfsg-1ubuntu0.11.10.3
clamav 0.97.5+dfsg-1ubuntu0.11.10.3
Ubuntu 11.04:
libclamav6 0.97.5+dfsg-1ubuntu0.11.04.3
clamav 0.97.5+dfsg-1ubuntu0.11.04.3

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

LP: 1015405