USN-3085-1: GDK-PixBuf vulnerabilities

Releases

• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• gdk-pixbuf - GDK-Pixbuf library

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)

Update instructions

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

Ubuntu 16.04

• libgdk-pixbuf2.0-0 - 2.32.2-1ubuntu1.2

Ubuntu 14.04

• libgdk-pixbuf2.0-0 - 2.30.7-0ubuntu1.6

Ubuntu 12.04

• libgdk-pixbuf2.0-0 - 2.26.1-1ubuntu1.5

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

References

• CVE-2015-7552
• CVE-2015-8875
• CVE-2016-6352