=========================================================================Ubuntu Security Notice USN-3085-1
September 21, 2016
gdk-pixbuf vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
GDK-PixBuf could be made to crash or run programs as your login if it opened a
specially crafted file.
Software Description:
- 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 LTS:
libgdk-pixbuf2.0-0 2.32.2-1ubuntu1.2
Ubuntu 14.04 LTS:
libgdk-pixbuf2.0-0 2.30.7-0ubuntu1.6
Ubuntu 12.04 LTS:
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:
https://ubuntu.com/security/notices/USN-3085-1
CVE-2015-7552, CVE-2015-8875, CVE-2016-6352
Package Information:
https://launchpad.net/ubuntu/+source/gdk-pixbuf/2.32.2-1ubuntu1.2
https://launchpad.net/ubuntu/+source/gdk-pixbuf/2.30.7-0ubuntu1.6
https://launchpad.net/ubuntu/+source/gdk-pixbuf/2.26.1-1ubuntu1.5