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Home >> Browse Vulnerability Assessment Database >> Ubuntu Local Security Checks >> USN110-1 : linux-source-2.6.8.1 vulnerabilities

Vulnerability Assessment Details

USN110-1 : linux-source-2.6.8.1 vulnerabilities

Vulnerability Assessment Summary
linux-source-2.6.8.1 vulnerabilities

Detailed Explanation for this Vulnerability Assessment

Summary :

These remote packages are missing security patches :
- linux-doc-2.6.8.1
- linux-headers-2.6.8.1-5
- linux-headers-2.6.8.1-5-386
- linux-headers-2.6.8.1-5-686
- linux-headers-2.6.8.1-5-686-smp
- linux-headers-2.6.8.1-5-amd64-generic
- linux-headers-2.6.8.1-5-amd64-k8
- linux-headers-2.6.8.1-5-amd64-k8-smp
- linux-headers-2.6.8.1-5-amd64-xeon
- linux-headers-2.6.8.1-5-k7
- linux-headers-2.6.8.1-5-k7-smp
- linux-headers-2.6.8.1-5-power3
- linux-headers-2.6.8.1-5-power3-smp
- linux-headers-2.6.8.
[...]

Description :

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
rights 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)

Solution :

Upgrade to :
- linux-doc-2.6.8.1-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-386-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-686-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-686-smp-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-amd64-generic-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-amd64-k8-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6.8.1-5-amd64-k8-smp-2.6.8.1-16.14 (Ubuntu 4.10)
- linux-headers-2.6
[...]

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi

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