USN-2272-1: Linux kernel (Trusty HWE) vulnerability

Ubuntu Security Notice USN-2272-1

5th July, 2014

linux-lts-trusty vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS

Summary

The system could be made to crash or run programs as an administrator.

Software description

  • linux-lts-trusty - Block storage devices (udeb)

Details

Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on
x86_64 processors. An attacker could exploit this flaw to cause a denial of
service (System Crash) or potential gain administrative privileges.

Update instructions

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

Ubuntu 12.04 LTS:
linux-image-3.13.0-30-generic 3.13.0-30.55~precise1
linux-image-3.13.0-30-generic-lpae 3.13.0-30.55~precise1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2014-4699