USN-2527-1: Linux kernel (Trusty HWE) vulnerability
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: http://bit.ly/1aJDvTw.
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
from Ubuntu Security Notices http://bit.ly/1L0oeUQ