1. Ubuntu Security Notices
  2. USN-472-1

USN-472-1: libpng vulnerability

Publication date

12 June 2007

Overview

libpng vulnerability

Releases

Details

It was discovered that libpng did not correctly handle corrupted CRC
in grayscale PNG images. By tricking a user into opening a specially
crafted PNG, a remote attacker could cause the application using libpng
to crash, resulting in a denial of service.

It was discovered that libpng did not correctly handle corrupted CRC
in grayscale PNG images. By tricking a user into opening a specially
crafted PNG, a remote attacker could cause the application using libpng
to crash, resulting in a denial of service.

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
7.04 feisty libpng12-0 –  1.2.15~beta5-1ubuntu1
6.10 edgy libpng12-0 –  1.2.8rel-5.1ubuntu0.2
6.06 dapper libpng12-0 –  1.2.8rel-5ubuntu0.2

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References

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