USN-3712-1: libpng vulnerabilities
11 July 2018
libpng, libpng1.6 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in libpng.
Software Description
- libpng1.6 - PNG library - development (version 1.6)
- libpng - PNG (Portable Network Graphics) file library
Details
Patrick Keshishian discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10087)
Thuan Pham discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2018-13785)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.04 LTS
- libpng16-16 - 1.6.34-1ubuntu0.18.04.1
- Ubuntu 17.10
- libpng16-16 - 1.6.34-1ubuntu0.17.10.1
- Ubuntu 16.04 LTS
- libpng12-0 - 1.2.54-1ubuntu1.1
- Ubuntu 14.04 LTS
- libpng12-0 - 1.2.50-1ubuntu2.14.04.3
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.