Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges×

Alerts This Week
Warning Icon 1 550
Alerts This Week
Warning Icon 1 550

Ubuntu 12.04 LTS: 2042-1 Moderate: Multiple Kernel Flaws and Fixes

ubuntu
Calendar Grey December 3, 2013
Scroller Ubuntu
Multiple vulnerabilities addressed in Ubuntu 12.04 LTS kernel; refer to advisory USN-2043-1 for further information.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-saucy: Linux hardware enablement kernel from Saucy

Details:

A flaw was discovered in the Linux kernel's dm snapshot facility. A remote

authenticated user could exploit this flaw to obtain sensitive information

or modify/corrupt data. (CVE-2013-4299)

Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP

Fragmenttation Offload (UFO). An unprivileged local user could exploit this

flaw to cause a denial of service (system crash) or possibly gain

administrative privileges. (CVE-2013-4470)

Topics%20covered

Topics Covered

security advisory denial of service critical system update kernel flaw administrative privilege linux-lts-saucy

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.11.0-14-generic   3.11.0-14.21~precise1
  linux-image-3.11.0-14-generic-lpae  3.11.0-14.21~precise1

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-2042-1

CVE-2013-4299, CVE-2013-4470

December 03, 2013

Topics%20covered

Topics Covered

security advisory denial of service critical system update kernel flaw administrative privilege linux-lts-saucy

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-saucy/3.11.0-14.21~precise1

Get the latest News and Insights

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