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Test ID:1.3.6.1.4.1.25623.1.0.52044
Category:Ubuntu Local Security Checks
Title:Ubuntu 4.10 USN-110-1 (linux-source-2.6.8.1)
Summary:Ubuntu 4.10 USN-110-1 (linux-source-2.6.8.1)
Description:
The remote host is missing an update to linux-source-2.6.8.1
announced via advisory USN-110-1.

Alexander Nyberg discovered an integer overflow in the
sysfs_write_file() function. A local attacker could exploit this to
crash the kernel or possibly even execute arbitrary code with root
privileges by writing to an user-writable file in /sys under certain
low-memory conditions. However, there are very few cases where a
user-writeable sysfs file actually exists. (CVE-2005-0867)

Olof Johansson discovered a Denial of Service vulnerability in the
futex functions, which provide semaphores for exclusive locking of
resources. A local attacker could possibly exploit this to cause a
kernel deadlock. (CVE-2005-0937)

In addition this update fixes two race conditions in the ext3 and jfs
file system drivers, which could lead to a kernel crash under certain
(unusual) conditions. However, these cannot easily be triggered by
users, thus they are not security sensitive.
(http://linux.bkbits.net:8080/linux-2.5/gnupatch@4248d87aETPJX79hVXl4owAUwu2SmQ,
http://linux.bkbits.net:8080/linux-2.6/cset@1.2181.46.242)

The following packages are affected:

linux-image-2.6.8.1-5-386
linux-image-2.6.8.1-5-686
linux-image-2.6.8.1-5-686-smp
linux-image-2.6.8.1-5-amd64-generic
linux-image-2.6.8.1-5-amd64-k8
linux-image-2.6.8.1-5-amd64-k8-smp
linux-image-2.6.8.1-5-amd64-xeon
linux-image-2.6.8.1-5-k7
linux-image-2.6.8.1-5-k7-smp
linux-image-2.6.8.1-5-power3
linux-image-2.6.8.1-5-power3-smp
linux-image-2.6.8.1-5-power4
linux-image-2.6.8.1-5-power4-smp
linux-image-2.6.8.1-5-powerpc
linux-image-2.6.8.1-5-powerpc-smp
linux-patch-debian-2.6.8.1
linux-source-2.6.8.1

Solution:
The problem can be corrected by upgrading the affected package to
version 2.6.8.1-16.14. You need to reboot the computer after doing a
standard system upgrade to effect the necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-110-1

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2005-0867
http://www.securityfocus.com/archive/1/archive/1/427980/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2005-366.html
SuSE Security Announcement: SUSE-SA:2005:018 (Google Search)
http://www.novell.com/linux/security/advisories/2005_18_kernel.html
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10867
Common Vulnerability Exposure (CVE) ID: CVE-2005-0937
http://lkml.org/lkml/2005/2/22/123
http://www.redhat.com/support/errata/RHSA-2005-420.html
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10037
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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