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USN-3085-1: GDK-PixBuf vulnerabilities

21 September 2016

GDK-PixBuf could be made to crash or run programs as your login if it opened a specially crafted file.

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Details

It was discovered that the GDK-PixBuf library did not properly handle specially
crafted bmp images, leading to a heap-based buffer overflow. If a user or
automated system were tricked into opening a specially crafted bmp file, a
remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-7552)

It was discovered that the GDK-PixBuf library contained an integer overflow
when handling certain images. If a user or automated system were tricked into
opening a crafted image file, a remote attacker could use this flaw to cause
GDK-PixBuf to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8875)

Franco Costantini discovered that the GDK-PixBuf library contained an
out-of-bounds write error when parsing an ico file. If a user or automated
system were tricked into opening a crafted ico file, a remote attacker could
use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service.
This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6352)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

After a standard system update you need to restart your session to make
all the necessary changes.