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Ubuntu Security Notice (C) 2011-2016 Canonical, Inc. / NASL script (C) 2011-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related
Dan Rosenberg discovered that multiple terminal ioctls did not
correctly initialize structure memory. A local attacker could exploit
this to read portions of kernel stack memory, leading to a loss of
privacy. (CVE-2010-4076, CVE-2010-4077)
It was discovered that Xen did not correctly handle certain block
requests. A local attacker in a Xen guest could cause the Xen host to
use all available CPU resources, leading to a denial of service.
It was discovered that the ICMP stack did not correctly handle certain
unreachable messages. If a remote attacker were able to acquire a
socket lock, they could send specially crafted traffic that would
crash the system, leading to a denial of service. (CVE-2010-4526)
Kees Cook reported that /proc/pid/stat did not correctly filter
certain memory locations. A local attacker could determine the memory
layout of processes in an attempt to increase the chances of a
successful memory corruption exploit. (CVE-2011-0726)
Timo Warns discovered that OSF partition parsing routines did not
correctly clear memory. A local attacker with physical access could
plug in a specially crafted block device to read kernel memory,
leading to a loss of privacy. (CVE-2011-1163)
Timo Warns discovered that the GUID partition parsing routines did not
correctly validate certain structures. A local attacker with physical
access could plug in a specially crafted block device to crash the
system, leading to a denial of service. (CVE-2011-1577)
Vasiliy Kulikov discovered that the AGP driver did not check certain
ioctl values. A local attacker with access to the video subsystem
could exploit this to crash the system, leading to a denial of
service, or possibly gain root privileges. (CVE-2011-1745,
Vasiliy Kulikov discovered that the AGP driver did not check the size
of certain memory allocations. A local attacker with access to the
video subsystem could exploit this to run the system out of memory,
leading to a denial of service. (CVE-2011-1746).
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 packages.
Risk factor :
High / CVSS Base Score : 7.1
CVSS Temporal Score : 5.6
Public Exploit Available : true
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 55607 ()
Bugtraq ID: 45029450594566146878473434753447535477914783247843
CVE ID: CVE-2010-4076CVE-2010-4077CVE-2010-4247CVE-2010-4526CVE-2011-0726CVE-2011-1163CVE-2011-1577CVE-2011-1745CVE-2011-1746CVE-2011-1747CVE-2011-2022
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