[security-announce] linux-qoriq 3.12: CVE-2015-3636: Security Update

Sona Sarmadi sona.sarmadi at enea.com
Fri Mar 11 12:18:32 CET 2016

	Enea Linux Security Advisory

Product/package: kernel (linux-qoriq 3.12) /Enea Linux 5.0
Severity: Medium
CVE Name: CVE-2015-3636, kernel-ipv6
Layer: meta-enea

This update fixes use-after-free leading to local privilege escalation
in the Freescale kernel version 3.12.

The ping_unhash function in net/ipv4/ping.c in the Linux kernel before
4.0.3 does not initialize a certain list data structure during an unhash
operation, which allows local users to gain privileges or cause a denial
of service (use-after-free and system crash) by leveraging the ability
to make a SOCK_DGRAM socket system call for the IPPROTO_ICMP or
IPPROTO_ICMPV6 protocol, and then making a connect system call after a


Reference to the upstream fixes:

Correction for Enea Linux

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

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
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/
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/
git -C $POKY clone -b dizzy
git -C $POKY/meta-enea clone -b dizzy

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

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