Ubuntu Security Notice USN-2527-1
12th March, 2015
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
– Linux hardware enablement kernel from Trusty
Details
It was discovered that the Linux kernel’s Infiniband subsystem did not
properly sanitize its input parameters while registering memory regions
from userspace. A local user could exploit this flaw to cause a denial of
service (system crash) or to potentially 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-3.13.0-46-generic-lpae
3.13.0-46.79~precise1
-
linux-image-3.13.0-46-generic
3.13.0-46.79~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.