Ubuntu Security Notice 1482-3 - USN-1482-1 fixed vulnerabilities in ClamAV. The updated package could fail to properly scan files in some situations. This update fixes the problem. 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. 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. Various other issues were also addressed.
f6eafdf05eddc06cc3f5e1210fb3edc481985bad585d980219e95024ddabd0ae
Content-Disposition: inline
============================================================================
Ubuntu Security Notice USN-1482-3
August 16, 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 versions:
Ubuntu 12.04 LTS:
clamav 0.97.5+dfsg-1ubuntu0.12.04.3
libclamav6 0.97.5+dfsg-1ubuntu0.12.04.3
Ubuntu 11.10:
clamav 0.97.5+dfsg-1ubuntu0.11.10.3
libclamav6 0.97.5+dfsg-1ubuntu0.11.10.3
Ubuntu 11.04:
clamav 0.97.5+dfsg-1ubuntu0.11.04.3
libclamav6 0.97.5+dfsg-1ubuntu0.11.04.3
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1482-3
http://www.ubuntu.com/usn/usn-1482-1
https://launchpad.net/bugs/1015405
Package Information:
https://launchpad.net/ubuntu/+source/clamav/0.97.5+dfsg-1ubuntu0.12.04.3
https://launchpad.net/ubuntu/+source/clamav/0.97.5+dfsg-1ubuntu0.11.10.3
https://launchpad.net/ubuntu/+source/clamav/0.97.5+dfsg-1ubuntu0.11.04.3