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Ubuntu 12.04 LTS USN-1482-3 Addresses Critical ClamAV Scanning Issue

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Calendar Grey August 16, 2012
Scroller Ubuntu
The latest ClamAV patch addresses scanning problems introduced by USN-1482-1, impacting various editions of Ubuntu.
USN-1482-1 introduced a regression in ClamAV that could cause it to fail to scan certain documents.

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)

Topics%20covered

Topics Covered

security advisory critical issue Ubuntu ClamAV regression issue

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

https://ubuntu.com/security/notices/USN-1482-3

https://ubuntu.com/security/notices/USN-1482-1

https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1015405

Severity
critical
Lowest
Low
Medium
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Critical

August 16, 2012

Topics%20covered

Topics Covered

security advisory critical issue Ubuntu ClamAV regression issue

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

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