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Ubuntu Security Notice (C) 2013-2016 Canonical, Inc. / NASL script (C) 2013-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related
Pedro Ribeiro discovered that the X.Org X server incorrectly handled
memory operations when handling ImageText requests. An attacker could
use this issue to cause X.Org to crash, or to possibly execute
arbitrary code. (CVE-2013-4396)
It was discovered that non-root X.Org X servers such as Xephyr
incorrectly used cached xkb files. A local attacker could use this
flaw to cause a xkb cache file to be loaded by another user, resulting
in a denial of service. (CVE-2013-1056).
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.
Update the affected xserver-xorg-core, xserver-xorg-core-lts-quantal
and / or xserver-xorg-core-lts-raring packages.
Risk factor :
Medium / CVSS Base Score : 6.5
CVSS Temporal Score : 4.8
Public Exploit Available : false
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 70492 ()
Bugtraq ID: 62892
CVE ID: CVE-2013-1056CVE-2013-4396
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