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 1 491
Alerts This Week
Warning Icon 1 491

Ubuntu 11.04: USN-1557-1 Critical: Linux Kernel Crash Threat

ubuntu
Calendar Grey September 7, 2012
Scroller Ubuntu
An essential vulnerability in the Linux kernel permits a local user to cause a system crash. It's crucial to update Ubuntu 11.04 to address this issue. Discover how!
The system could be made to crash under certain conditions.

Summary

The system could be made to crash under certain conditions.

Software Description:

- linux: Linux kernel

Details:

Some errors where discovered in the Linux kernel's UDF file system, which

is used to mount some CD-ROMs and DVDs. An unprivileged local user could

use these flaws to crash the system.

Update Instructions

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

Ubuntu 11.04:
  linux-image-2.6.38-15-generic   2.6.38-15.66
  linux-image-2.6.38-15-generic-pae  2.6.38-15.66
  linux-image-2.6.38-15-omap      2.6.38-15.66
  linux-image-2.6.38-15-powerpc   2.6.38-15.66
  linux-image-2.6.38-15-powerpc-smp  2.6.38-15.66
  linux-image-2.6.38-15-powerpc64-smp  2.6.38-15.66
  linux-image-2.6.38-15-server    2.6.38-15.66
  linux-image-2.6.38-15-versatile  2.6.38-15.66
  linux-image-2.6.38-15-virtual   2.6.38-15.66

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

References

https://ubuntu.com/security/notices/USN-1557-1

CVE-2012-3400

Severity
critical
Lowest
Low
Medium
High
Critical

September 07, 2012

Package Information

Get the latest News and Insights

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