USN-2861-1: libpng vulnerabilities
6 January 2016
libpng could be made to crash or run programs as your login if it opened a specially crafted file.
Releases
Packages
- libpng - PNG (Portable Network Graphics) file library
Details
It was discovered that libpng incorrectly handled certain small bit-depth
values. If a user or automated system using libpng were tricked into
opening a specially crafted image, an attacker could exploit this to cause
a denial of service or execute code with the privileges of the user
invoking the program. (CVE-2015-8472)
Qixue Xiao and Chen Yu discovered that libpng incorrectly handled certain
malformed images. If a user or automated system using libpng were tricked
into opening a specially crafted image, an attacker could exploit this to
cause a denial of service. (CVE-2015-8540)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.10
Ubuntu 15.04
Ubuntu 14.04
Ubuntu 12.04
After a standard system update you need to restart your session to make
all the necessary changes.