Ubuntu: 1784-1: libxslt vulnerability
Posted by Benjamin D. Thomas   
Ubuntu Applications using libxslt could be made to crash if they processed aspecially crafted file.
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Ubuntu Security Notice USN-1784-1
April 02, 2013

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Applications using libxslt could be made to crash if they processed a
specially crafted file.

Software Description:
- libxslt: XSLT processing library

Details:

Nicholas Gregoire discovered that libxslt incorrectly handled certain empty
values. If a user or automated system were tricked into processing a
specially crafted XSLT document, a remote attacker could cause libxslt to
crash, causing a denial of service.

Update instructions:

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

Ubuntu 12.10:
  libxslt1.1                      1.1.26-14ubuntu0.1

Ubuntu 12.04 LTS:
  libxslt1.1                      1.1.26-8ubuntu1.3

Ubuntu 11.10:
  libxslt1.1                      1.1.26-7ubuntu0.2

Ubuntu 10.04 LTS:
  libxslt1.1                      1.1.26-1ubuntu1.2

Ubuntu 8.04 LTS:
  libxslt1.1                      1.1.22-1ubuntu1.4

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

References:
  http://www.ubuntu.com/usn/usn-1784-1
  CVE-2012-6139

Package Information:
  https://launchpad.net/ubuntu/+source/libxslt/1.1.26-14ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxslt/1.1.26-8ubuntu1.3
  https://launchpad.net/ubuntu/+source/libxslt/1.1.26-7ubuntu0.2
  https://launchpad.net/ubuntu/+source/libxslt/1.1.26-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/libxslt/1.1.22-1ubuntu1.4