1. Ubuntu Security Notices
  2. USN-1656-1

USN-1656-1: Libxml2 vulnerability

Publication date

6 December 2012

Overview

Applications using libxml2 could be made to crash or run programs as your login if they opened a specially crafted file.

Releases

Packages

Details

It was discovered that libxml2 had a heap-based buffer underflow
when parsing entities. If a user or automated system were tricked into
processing a specially crafted XML document, applications linked against
libxml2 could be made to crash or possibly execute arbitrary code.

It was discovered that libxml2 had a heap-based buffer underflow
when parsing entities. If a user or automated system were tricked into
processing a specially crafted XML document, applications linked against
libxml2 could be made to crash or possibly execute arbitrary code.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
8.04 hardy libxml2 –  2.6.31.dfsg-2ubuntu1.11
12.10 quantal libxml2 –  2.8.0+dfsg1-5ubuntu2.1
12.04 precise libxml2 –  2.7.8.dfsg-5.1ubuntu4.3
11.10 oneiric libxml2 –  2.7.8.dfsg-4ubuntu0.5
10.04 lucid libxml2 –  2.7.6.dfsg-1ubuntu1.7

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References

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