Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : libgd2 vulnerabilities (USN-3030-1)

Ubuntu Security Notice (C) 2016 Canonical, Inc. / NASL script (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

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 affected Ubuntu
14.04 LTS. (CVE-2013-7456)

It was discovered that the GD library incorrectly handled certain
malformed XBM images. If a user or automated system were tricked into
processing a specially crafted XBM image, an attacker could cause a
denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu
15.10 and Ubuntu 16.04 LTS. (CVE-2016-5116)

It was discovered that the GD library incorrectly handled memory when
using _gd2GetHeader(). A remote attacker could possibly use this issue
to cause a denial of service or possibly execute arbitrary code.
(CVE-2016-5766)

It was discovered that the GD library incorrectly handled certain
color indexes. A remote attacker could possibly use this issue to
cause a denial of service. This issue only affected Ubuntu 14.04 LTS,
Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-6128)

It was discovered that the GD library incorrectly handled memory when
encoding a GIF image. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2016-6161).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected libgd2-noxpm, libgd2-xpm and / or libgd3 packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.3
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 92011 ()

Bugtraq ID:

CVE ID: CVE-2013-7456
CVE-2016-5116
CVE-2016-5766
CVE-2016-6128
CVE-2016-6161

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