USN-3292-1: Linux kernel vulnerability
17 May 2017
The system could be made to crash or run programs as an administrator.
Releases
Packages
- linux - Linux kernel
- linux-raspi2 - Linux kernel for Raspberry Pi 2
Details
Jason Donenfeld discovered a heap overflow in the MACsec module in the
Linux kernel. An attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.10
-
linux-image-powerpc-smp
-
4.8.0.52.64
-
linux-image-powerpc-e500mc
-
4.8.0.52.64
-
linux-image-4.8.0-52-lowlatency
-
4.8.0-52.55
-
linux-image-generic-lpae
-
4.8.0.52.64
-
linux-image-4.8.0-52-generic
-
4.8.0-52.55
-
linux-image-4.8.0-52-generic-lpae
-
4.8.0-52.55
-
linux-image-4.8.0-52-powerpc64-emb
-
4.8.0-52.55
-
linux-image-generic
-
4.8.0.52.64
-
linux-image-4.8.0-52-powerpc-e500mc
-
4.8.0-52.55
-
linux-image-4.8.0-1036-raspi2
-
4.8.0-1036.39
-
linux-image-lowlatency
-
4.8.0.52.64
-
linux-image-powerpc64-emb
-
4.8.0.52.64
-
linux-image-raspi2
-
4.8.0.1036.40
-
linux-image-4.8.0-52-powerpc-smp
-
4.8.0-52.55
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
Related notices
- USN-3292-2: linux-image-4.8.0-52-lowlatency, linux-image-extra-4.8.0-52-generic, linux-image-4.8.0-52-generic-lpae, linux-image-4.8.0-52-generic, linux-hwe
- USN-3293-1: linux-image-4.10.0-1005-raspi2, linux-image-raspi2, linux-raspi2, linux-image-generic, linux-image-lowlatency, linux-image-4.10.0-21-lowlatency, linux-image-4.10.0-21-generic, linux-image-generic-lpae, linux, linux-image-4.10.0-21-generic-lpae