Articles / Ubuntu: New libsndfile pack…

Ubuntu: New libsndfile packages fix security vulnerabilities

Hossein Lotfi discovered that libsndfile did not properly verify the header length and number of channels for PARIS Audio Format (PAF) audio files. An attacker could exploit this to cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1174-1
July 25, 2011

libsndfile vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

An application using libsndfile could be made to crash or possibly run
programs as your login if it opened a specially crafted file.

Software Description:
- libsndfile: Library for reading/writing audio files

Details:

Hossein Lotfi discovered that libsndfile did not properly verify the header
length and number of channels for PARIS Audio Format (PAF) audio files. An
attacker could exploit this to cause a denial of service via application
crash, or possibly execute arbitrary code with the privileges of the user
invoking the program.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
 libsndfile1                     1.0.23-1ubuntu0.1

Ubuntu 10.10:
 libsndfile1                     1.0.21-2ubuntu0.10.10.1

Ubuntu 10.04 LTS:
 libsndfile1                     1.0.21-2ubuntu0.10.04.1

After a standard system update you need to restart your login session to
make all the necessary changes.

References:
 http://www.ubuntu.com/usn/usn-1174-1
 CVE-2011-2696

Package Information:
 https://launchpad.net/ubuntu/+source/libsndfile/1.0.23-1ubuntu0.1
 https://launchpad.net/ubuntu/+source/libsndfile/1.0.21-2ubuntu0.10.10.1
 https://launchpad.net/ubuntu/+source/libsndfile/1.0.21-2ubuntu0.10.04.1
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