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Ubuntu 11.10 USN-1275-1 Moderate: Linux Kernel Info Exposure

ubuntu
Calendar Grey November 21, 2011
Scroller Ubuntu
The Ubuntu Security Announcement USN-1402-3 concerns a vulnerability that allows unauthorized access to sensitive data through a flaw in the kernel. Immediate action required.
The system could be made to expose sensitive information locally.

Summary

The system could be made to expose sensitive information locally.

Software Description:

- linux: Linux kernel

Details:

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.

Topics%20covered

Topics Covered

security advisory information leak kernel local access ubuntu linux privacy

Update Instructions

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

Ubuntu 11.10:
  linux-image-3.0.0-13-generic    3.0.0-13.22
  linux-image-3.0.0-13-generic-pae  3.0.0-13.22
  linux-image-3.0.0-13-omap       3.0.0-13.22
  linux-image-3.0.0-13-powerpc    3.0.0-13.22
  linux-image-3.0.0-13-powerpc-smp  3.0.0-13.22
  linux-image-3.0.0-13-powerpc64-smp  3.0.0-13.22
  linux-image-3.0.0-13-server     3.0.0-13.22
  linux-image-3.0.0-13-virtual    3.0.0-13.22

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

https://ubuntu.com/security/notices/USN-1275-1

CVE-2011-2494

Severity
important
Lowest
Low
Medium
High
Critical

November 21, 2011

Topics%20covered

Topics Covered

security advisory information leak kernel local access ubuntu linux privacy

Package Information

https://launchpad.net/ubuntu/+source/linux/3.0.0-13.22

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