USN-2268-1: Linux kernel vulnerability

Ubuntu Security Notice USN-2268-1

5th July, 2014

linux 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 - Linux kernel

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-3.2.0-65-highbank 3.2.0-65.99
linux-image-3.2.0-65-virtual 3.2.0-65.99
linux-image-3.2.0-65-powerpc64-smp 3.2.0-65.99
linux-image-3.2.0-65-generic-pae 3.2.0-65.99
linux-image-3.2.0-65-omap 3.2.0-65.99
linux-image-3.2.0-65-generic 3.2.0-65.99
linux-image-3.2.0-65-powerpc-smp 3.2.0-65.99

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