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[USN-1336-1] Linux kernel vulnerability

Posted on 23 January 2012
Ubuntu Security

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Ubuntu Security Notice USN-1336-1
January 23, 2012

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

- Ubuntu 11.10

Summary:

The system could be made to run programs as an administrator.

Software Description:
- linux: Linux kernel

Details:

J=C3=BCri Aedla discovered that the kernel incorrectly handled /proc/<pid>/=
mem
permissions. A local attacker could exploit this and gain root privileges.

Update instructions:

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

Ubuntu 11.10:
linux-image-3.0.0-15-generic 3.0.0-15.26
linux-image-3.0.0-15-generic-pae 3.0.0-15.26
linux-image-3.0.0-15-omap 3.0.0-15.26
linux-image-3.0.0-15-powerpc 3.0.0-15.26
linux-image-3.0.0-15-powerpc-smp 3.0.0-15.26
linux-image-3.0.0-15-powerpc64-smp 3.0.0-15.26
linux-image-3.0.0-15-server 3.0.0-15.26
linux-image-3.0.0-15-virtual 3.0.0-15.26

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

References:
http://www.ubuntu.com/usn/usn-1336-1
CVE-2012-0056

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.0.0-15.26

 

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