USN-2987-1: GD library vulnerabilities

USN-2987-1: GD library vulnerabilities

Ubuntu Security Notice USN-2987-1

31st May, 2016

libgd2 vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

  • Ubuntu 16.04 LTS
  • Ubuntu 15.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

The GD library could be made to crash or run programs if it processed a
specially crafted image file.

Software description

  • libgd2
    – GD Graphics Library

Details

It was discovered that the GD library incorrectly handled certain color
tables in XPM images. If a user or automated system were tricked into
processing a specially crafted XPM image, an attacker could cause a denial
of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
(CVE-2014-2497)

It was discovered that the GD library incorrectly handled certain malformed
GIF images. If a user or automated system were tricked into processing a
specially crafted GIF image, an attacker could cause a denial of service.
This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
(CVE-2014-9709)

It was discovered that the GD library incorrectly handled memory when using
gdImageFillToBorder(). A remote attacker could possibly use this issue to
cause a denial of service. (CVE-2015-8874)

It was discovered that the GD library incorrectly handled memory when using
gdImageScaleTwoPass(). A remote attacker could possibly use this issue to
cause a denial of service. This issue only applied to Ubuntu 14.04 LTS,
Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2015-8877)

Hans Jerry Illikainen discovered that the GD library incorrectly handled
certain malformed GD images. If a user or automated system were tricked
into processing a specially crafted GD image, an attacker could cause a
denial of service or possibly execute arbitrary code. (CVE-2016-3074)

Update instructions

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

Ubuntu 16.04 LTS:
libgd3

2.1.1-4ubuntu0.16.04.1
Ubuntu 15.10:
libgd3

2.1.1-4ubuntu0.15.10.1
Ubuntu 14.04 LTS:
libgd3

2.1.0-3ubuntu0.1
Ubuntu 12.04 LTS:
libgd2-xpm

2.0.36~rc1~dfsg-6ubuntu2.1
libgd2-noxpm

2.0.36~rc1~dfsg-6ubuntu2.1

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

In general, a standard system update will make all the necessary changes.

References

CVE-2014-2497,

CVE-2014-9709,

CVE-2015-8874,

CVE-2015-8877,

CVE-2016-3074

Source: USN-2987-1: GD library vulnerabilities

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