[security-announce] linux-qoriq 3.12: CVE-2015-2922: Security Update

Sona Sarmadi sona.sarmadi at enea.com
Fri Mar 11 12:17:48 CET 2016


	Enea Linux Security Advisory

=========================================================
Product/package: kernel (linux-qoriq 3.12) /Enea Linux 5.0
Severity: Low
CVE Name: CVE-2015-2922, kernel-ipv6
Layer: meta-enea
=========================================================

This update fixes denial of service (DoS) attack against IPv6 network
stacks due to improper handling of Router Advertisements.

Description
===========
The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor
Discovery (ND) protocol implementation in the IPv6 stack in the Linux
kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit
setting via a small hop_limit value in a Router Advertisement (RA) message.

References:
===========
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2922

Reference to the upstream fixes:
===============================
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/
patch/?id=ac12ff18b11259e10c2d543aa58c73ff88a68e77

Correction for Enea Linux
=========================
http://git.enea.com/cgit/linux/meta-enea.git/patch/?id=0f8f654b183e41fed39e2eaa91b7dcb3a9e2086e


How to get the latest patches
=============================
- If you have already cloned needed repositories, update it to get new
security patches.

cd Enea-Linux-5.0/poky/meta-enea
git pull

- If you have not yet cloned needed repositories, do it as described
below. (Security patches are fetched implicitly when cloning the repos).

mkdir Enea-Linux-5.0
git -C Enea-Linux-5.0 clone -b dizzy git://git.enea.com/linux/poky.git
POKY=Enea-Linux-5.0/poky
git -C $POKY clone -b dizzy git://git.enea.com/linux/meta-enea.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/meta-fsl-ppc.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/
meta-hierofalcon.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/meta-linaro.git
git -C $POKY clone -b dizzy git://git.enea.com/linux/
meta-openembedded.git
git -C $POKY clone -b dizzy
git://git.enea.com/linux/meta-virtualization.git
git -C $POKY/meta-enea clone -b dizzy
git://git.enea.com/linux/meta-enea/meta-vt.git

If you have any questions regarding the security patches and security
updates please contact security at enea.com.

Enea Security Team
Sona Sarmadi
Mobile: +46 70 971 4475
www.enea.com

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