USN-3495-1: OptiPNG vulnerability
Ubuntu Security Notice USN-3495-1
27th November, 2017
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
OptiPNG could be made to crash or run programs as your login if it opened a specially crafted file.
- optipng - advanced PNG (Portable Network Graphics) optimizer
It was discovered that OptiPNG incorrectly handled memory. A remote
attacker could use this issue with a specially crafted image file to cause
OptiPNG to crash, resulting in a denial of service, or possibly execute
The problem can be corrected by updating your system to the following package version:
- Ubuntu 17.10:
- optipng 0.7.6-1ubuntu0.17.10.1
- Ubuntu 17.04:
- optipng 0.7.6-1ubuntu0.17.04.1
- Ubuntu 16.04 LTS:
- optipng 0.7.6-1ubuntu0.16.04.1
- Ubuntu 14.04 LTS:
- optipng 0.6.4-1ubuntu0.14.04.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.