Ubuntu 12.04 LTS: USN-1482-1 Critical: ClamAV Malware Detection Issue

ubuntu

June 19, 2012

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

Summary

ClamAV could improperly detect malware if it opened a specially crafted

file.

Software Description:

- clamav: Anti-virus utility for Unix

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)

Topics Covered

security advisory critical remote attack Ubuntu clamav malware detection

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-1ubuntu0.12.04.1
  clamav-daemon                   0.97.5+dfsg-1ubuntu0.12.04.1
  libclamav6                      0.97.5+dfsg-1ubuntu0.12.04.1

Ubuntu 11.10:
  clamav                          0.97.5+dfsg-1ubuntu0.11.10.1
  clamav-daemon                   0.97.5+dfsg-1ubuntu0.11.10.1
  libclamav6                      0.97.5+dfsg-1ubuntu0.11.10.1

Ubuntu 11.04:
  clamav                          0.97.5+dfsg-1ubuntu0.11.04.1
  clamav-daemon                   0.97.5+dfsg-1ubuntu0.11.04.1
  libclamav6                      0.97.5+dfsg-1ubuntu0.11.04.1

Ubuntu 10.04 LTS:
  clamav                          0.96.5+dfsg-1ubuntu1.10.04.4
  clamav-daemon                   0.96.5+dfsg-1ubuntu1.10.04.4
  libclamav6                      0.96.5+dfsg-1ubuntu1.10.04.4

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