USN-3218-1: Linux kernel vulnerability
Ubuntu Security Notice USN-3218-1
7th March, 2017
linux, linux-ti-omap4 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 - linux-ti-omap4
– Linux kernel for OMAP4
Details
Alexander Popov discovered that the N_HDLC line discipline implementation
in the Linux kernel contained a double-free vulnerability. A local attacker
could use this to cause a denial of service (system crash) or possibly 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-omap4 3.2.0.1502.97
-
linux-image-3.2.0-124-virtual
3.2.0-124.167
- linux-image-generic 3.2.0.124.139
- linux-image-powerpc-smp 3.2.0.124.139
- linux-image-generic-pae 3.2.0.124.139
-
linux-image-3.2.0-124-generic-pae
3.2.0-124.167
- linux-image-highbank 3.2.0.124.139
- linux-image-virtual 3.2.0.124.139
-
linux-image-3.2.0-124-omap
3.2.0-124.167
- linux-image-powerpc64-smp 3.2.0.124.139
-
linux-image-3.2.0-124-highbank
3.2.0-124.167
-
linux-image-3.2.0-124-generic
3.2.0-124.167
-
linux-image-3.2.0-1502-omap4
3.2.0-1502.129
- linux-image-omap 3.2.0.124.139
-
linux-image-3.2.0-124-powerpc-smp
3.2.0-124.167
-
linux-image-3.2.0-124-powerpc64-smp
3.2.0-124.167
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-3218-1: Linux kernel vulnerability
