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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-1294-1
Distribution: Ubuntu
Plattformen: Ubuntu 10.04 LTS
Datum: Do, 8. Dezember 2011, 17:30
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1162
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2494
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2942
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3209
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3638
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4081
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4087
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4326
Applikationen: Linux

Originalnachricht

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==========================================================================
Ubuntu Security Notice USN-1294-1
December 08, 2011

linux-lts-backport-oneiric vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-lts-backport-oneiric: Linux kernel backport from Oneiric

Details:

Peter Huewe discovered an information leak in the handling of reading
security-related TPM data. A local, unprivileged user could read the
results of a previous TPM command. (CVE-2011-1162)

Vasiliy Kulikov discovered that taskstats did not enforce access
restrictions. A local attacker could exploit this to read certain
information, leading to a loss of privacy. (CVE-2011-2494)

Qianfeng Zhang discovered that the bridge networking interface incorrectly
handled certain network packets. A remote attacker could exploit this to
crash the system, leading to a denial of service. (CVE-2011-2942)

Yasuaki Ishimatsu discovered a flaw in the kernel's clock implementation. A
local unprivileged attacker could exploit this causing a denial of service.
(CVE-2011-3209)

Zheng Liu discovered a flaw in how the ext4 filesystem splits extents. A
local unprivileged attacker could exploit this to crash the system, leading
to a denial of service. (CVE-2011-3638)

Nick Bowler discovered the kernel GHASH message digest algorithm
incorrectly handled error conditions. A local attacker could exploit this
to cause a kernel oops. (CVE-2011-4081)

Scot Doyle discovered that the bridge networking interface incorrectly
handled certain network packets. A remote attacker could exploit this to
crash the system, leading to a denial of service. (CVE-2011-4087)

A bug was found in the way headroom check was performed in
udp6_ufo_fragment() function. A remote attacker could use this flaw to
crash the system. (CVE-2011-4326)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 10.04 LTS:
linux-image-3.0.0-13-generic 3.0.0-13.22~lucid1
linux-image-3.0.0-13-generic-pae 3.0.0-13.22~lucid1
linux-image-3.0.0-13-server 3.0.0-13.22~lucid1
linux-image-3.0.0-13-virtual 3.0.0-13.22~lucid1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1294-1
CVE-2011-1162, CVE-2011-2494, CVE-2011-2942, CVE-2011-3209,
CVE-2011-3638, CVE-2011-4081, CVE-2011-4087, CVE-2011-4326

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-13.22~lucid1



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