星球 - USN-3085-1: GDK-PixBuf vulnerabilities

來自:Ubuntu security notices | 2016/9/24 4:42:54

Ubuntu Security Notice USN-3085-1


21st September, 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 version:




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






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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