Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 515
Alerts This Week
Warning Icon 1 515

Ubuntu 10.04 LTS: USN-1332-1 Critical Kernel Issues Exposed

ubuntu
Calendar Grey January 13, 2012
Scroller Ubuntu
Multiple security flaws addressed in the Linux kernel backports impacting Ubuntu 10.04 LTS, exposing significant vulnerabilities requiring immediate attention.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-backport-maverick: Linux kernel backport from Maverick

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)

Clement Lecigne discovered a bug in the HFS filesystem. A local attacker

could exploit this to cause a kernel oops. (CVE-2011-2203)

A flaw was found in how the Linux kernel handles user-defined key types. An

unprivileged local user could exploit this to crash the system.

(CVE-2011-4110)

Topics%20covered

Topics Covered

security advisory information leak critical ubuntu linux kernel kernel oops

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.35-32-generic   2.6.35-32.64~lucid1
  linux-image-2.6.35-32-generic-pae  2.6.35-32.64~lucid1
  linux-image-2.6.35-32-server    2.6.35-32.64~lucid1
  linux-image-2.6.35-32-virtual   2.6.35-32.64~lucid1

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

CVE-2011-1162, CVE-2011-2203, CVE-2011-4110

Severity
critical
Lowest
Low
Medium
High
Critical

January 13, 2012

Topics%20covered

Topics Covered

security advisory information leak critical ubuntu linux kernel kernel oops

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-backport-maverick/2.6.35-32.64~lucid1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.