Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : libx11, libxrender vulnerability (USN-2568-1)

Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

Abhishek Arya discovered that libX11 incorrectly handled memory in the
MakeBigReq macro. A remote attacker could use this issue to cause
applications to crash, resulting in a denial of service, or possibly
execute arbitrary code.

In addition, following the macro fix in libx11, a number of other
packages have also been rebuilt as security updates including
libxrender, libxext, libxi, libxfixes, libxrandr, libsdl1.2, libxv,
libxp, and xserver-xorg-video-vmware.

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 libx11-dev and / or libxrender1 packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 82766 ()

Bugtraq ID:

CVE ID: CVE-2013-7439

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