Ubuntu Security Notice USN-1482-2

19th 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 version:

Ubuntu 12.04 LTS:

libclamav6 0.97.5+dfsg-1ubuntu0.12.04.2

clamav 0.97.5+dfsg-1ubuntu0.12.04.2

clamav-daemon 0.97.5+dfsg-1ubuntu0.12.04.2

Ubuntu 11.10:

libclamav6 0.97.5+dfsg-1ubuntu0.11.10.2

clamav 0.97.5+dfsg-1ubuntu0.11.10.2

clamav-daemon 0.97.5+dfsg-1ubuntu0.11.10.2

Ubuntu 11.04:

libclamav6 0.97.5+dfsg-1ubuntu0.11.04.2

clamav 0.97.5+dfsg-1ubuntu0.11.04.2

clamav-daemon 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

LP: 1015337