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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-1900-1
Distribution: Ubuntu
Plattformen: Ubuntu 10.04 LTS
Datum: Fr, 5. Juli 2013, 10:48
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4508
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2141
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2852
Applikationen: Linux

Originalnachricht

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==========================================================================
Ubuntu Security Notice USN-1900-1
July 04, 2013

linux-ec2 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-ec2: Linux kernel for EC2

Details:

Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem
that can expose stale data. An unprivileged user could exploit this flaw to
cause an information leak. (CVE-2012-4508)

An information leak was discovered in the Linux kernel's tkill and tgkill
system calls when used from compat processes. A local user could exploit
this flaw to examine potentially sensitive kernel memory. (CVE-2013-2141)

A format string vulnerability was discovered in Broadcom B43 wireless
driver for the Linux kernel. A local user could exploit this flaw to gain
administrative privileges. (CVE-2013-2852)

Update instructions:

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

Ubuntu 10.04 LTS:
linux-image-2.6.32-354-ec2 2.6.32-354.67

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References:
http://www.ubuntu.com/usn/usn-1900-1
CVE-2012-4508, CVE-2013-2141, CVE-2013-2852

Package Information:
https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-354.67



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