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 1 461
Alerts This Week
Warning Icon 1 461

Ubuntu 12.04 LTS USN-1994-1 Critical: Linux Kernel Information Leak

ubuntu
Calendar Grey October 22, 2013
Scroller Ubuntu
An Ubuntu vulnerability jeopardizes private data for local users; apply the patch to resolve the linux-lts-raring kernel.
The system could be made to expose sensitive information to a local user.

Summary

The system could be made to expose sensitive information to a local user.

Software Description:

- linux-lts-quantal: Linux hardware enablement kernel from Quantal

Details:

Dan Carpenter discovered an information leak in the HP Smart Array and

Compaq SMART2 disk-array driver in the Linux kernel. A local user could

exploit this flaw to obtain sensitive information from kernel memory.

Topics%20covered

Topics Covered

security advisory information leak critical software update local access ubuntu linux kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.5.0-42-generic    3.5.0-42.65~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-1994-1

CVE-2013-2147

Severity
critical
Lowest
Low
Medium
High
Critical

October 22, 2013

Topics%20covered

Topics Covered

security advisory information leak critical software update local access ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-quantal/3.5.0-42.65~precise1

Get the latest News and Insights

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