1. Ubuntu Security Notices
  2. USN-383-1

USN-383-1: libpng vulnerability

Publication date

17 November 2006

Overview

libpng vulnerability

Releases

Details

Tavis Ormandy discovered that libpng did not correctly calculate the
size of sPLT structures when reading an image. By tricking a user or an
automated system into processing a specially crafted PNG file, an
attacker could exploit this weakness to crash the application using the
library.

Tavis Ormandy discovered that libpng did not correctly calculate the
size of sPLT structures when reading an image. By tricking a user or an
automated system into processing a specially crafted PNG file, an
attacker could exploit this weakness to crash the application using the
library.

Update instructions

After a standard system upgrade you need to reboot your computer to effect 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
6.10 edgy libpng12-0 –  1.2.8rel-5.1ubuntu0.1
6.06 dapper libpng12-0 –  1.2.8rel-5ubuntu0.1
5.10 breezy libpng10-0 –  1.0.18-1ubuntu3.1

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References

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