USN-3099-3: Linux kernel (Raspberry Pi 2) vulnerabilities
11 October 2016
Several security issues were fixed in the kernel.
Releases
Packages
- linux-raspi2 - Linux kernel for Raspberry Pi 2
Details
Vladimír Beneš discovered an unbounded recursion in the VLAN and TEB
Generic Receive Offload (GRO) processing implementations in the Linux
kernel, A remote attacker could use this to cause a stack corruption,
leading to a denial of service (system crash). (CVE-2016-7039)
Marco Grassi discovered a use-after-free condition could occur in the TCP
retransmit queue handling code in the Linux kernel. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2016-6828)
Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller
driver in the Linux kernel when handling ioctl()s. A local attacker could
use this to cause a denial of service (system crash). (CVE-2016-6480)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
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-3099-1: linux-image-4.4.0-42-powerpc64-smp, linux-image-4.4.0-42-generic, linux-image-4.4.0-42-generic-lpae, linux-image-4.4.0-42-lowlatency, linux-image-4.4.0-42-powerpc-smp, linux, linux-image-4.4.0-42-powerpc64-emb, linux-image-extra-4.4.0-42-generic, linux-image-4.4.0-42-powerpc-e500mc
- USN-3099-4: linux-image-4.4.0-1030-snapdragon, linux-snapdragon
- USN-3097-2: linux-ti-omap4, linux-image-3.2.0-1489-omap4
- USN-3099-2: linux-image-4.4.0-42-powerpc64-smp, linux-image-4.4.0-42-generic, linux-image-4.4.0-42-generic-lpae, linux-image-4.4.0-42-powerpc-smp, linux-image-4.4.0-42-lowlatency, linux-image-4.4.0-42-powerpc64-emb, linux-lts-xenial, linux-image-extra-4.4.0-42-generic, linux-image-4.4.0-42-powerpc-e500mc
- USN-3097-1: linux-image-3.2.0-111-virtual, linux-image-3.2.0-111-generic-pae, linux-image-3.2.0-111-powerpc64-smp, linux, linux-image-3.2.0-111-highbank, linux-image-3.2.0-111-powerpc-smp, linux-image-3.2.0-111-omap, linux-image-3.2.0-111-generic
- USN-3098-2: linux-lts-trusty, linux-image-3.13.0-98-generic, linux-image-3.13.0-98-generic-lpae
- USN-3098-1: linux-image-3.13.0-98-powerpc-smp, linux-image-3.13.0-98-powerpc-e500mc, linux-image-3.13.0-98-powerpc-e500, linux-image-3.13.0-98-generic, linux, linux-image-3.13.0-98-powerpc64-smp, linux-image-3.13.0-98-powerpc64-emb, linux-image-extra-3.13.0-98-generic, linux-image-3.13.0-98-lowlatency, linux-image-3.13.0-98-generic-lpae