Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : linux, linux-source-2.6.15/20/22 vulnerabilities (USN-637-1)

Ubuntu Security Notice (C) 2008-2016 Canonical, Inc. / NASL script (C) 2008-2016 Tenable Network Security, Inc.

Synopsis :

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

Description :

It was discovered that there were multiple NULL pointer function
dereferences in the Linux kernel terminal handling code. A local
attacker could exploit this to execute arbitrary code as root, or
crash the system, leading to a denial of service. (CVE-2008-2812)

The do_change_type routine did not correctly validation administrative
users. A local attacker could exploit this to block mount points or
cause private mounts to be shared, leading to denial of service or a
possible loss of privacy. (CVE-2008-2931)

Tobias Klein discovered that the OSS interface through ALSA did not
correctly validate the device number. A local attacker could exploit
this to access sensitive kernel memory, leading to a denial of service
or a loss of privacy. (CVE-2008-3272)

Zoltan Sogor discovered that new directory entries could be added to
already deleted directories. A local attacker could exploit this,
filling up available memory and disk space, leading to a denial of
service. (CVE-2008-3275)

In certain situations, the fix for CVE-2008-0598 from USN-623-1 was
causing infinite loops in the writev syscall. This update corrects the
mistake. We apologize for the inconvenience.

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 packages.

Risk factor :

High / CVSS Base Score : 7.2
CVSS Temporal Score : 6.3
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 34048 ()

Bugtraq ID: 30076

CVE ID: CVE-2008-0598

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