USN-3908-1: Linux kernel vulnerability
linux vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary
The system could be made to run programs as an administrator.
Software Description
- linux – Linux kernel
Details
Jann Horn discovered a race condition in the fork() system call in the
Linux kernel. A local attacker could use this to gain access to services
that cache authorizations.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 LTS
- linux-image-3.13.0-166-generic – 3.13.0-166.216
- linux-image-3.13.0-166-generic-lpae – 3.13.0-166.216
- linux-image-3.13.0-166-lowlatency – 3.13.0-166.216
- linux-image-3.13.0-166-powerpc-e500 – 3.13.0-166.216
- linux-image-3.13.0-166-powerpc-e500mc – 3.13.0-166.216
- linux-image-3.13.0-166-powerpc-smp – 3.13.0-166.216
- linux-image-3.13.0-166-powerpc64-emb – 3.13.0-166.216
- linux-image-3.13.0-166-powerpc64-smp – 3.13.0-166.216
- linux-image-generic – 3.13.0.166.177
- linux-image-generic-lpae – 3.13.0.166.177
- linux-image-lowlatency – 3.13.0.166.177
- linux-image-powerpc-e500 – 3.13.0.166.177
- linux-image-powerpc-e500mc – 3.13.0.166.177
- linux-image-powerpc-smp – 3.13.0.166.177
- linux-image-powerpc64-emb – 3.13.0.166.177
- linux-image-powerpc64-smp – 3.13.0.166.177
- linux-image-virtual – 3.13.0.166.177
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.
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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References
Source: USN-3908-1: Linux kernel vulnerability
