[security-announce] Security Update: linux-ls1_3.12 : CVE-2015-8569

Sona Sarmadi sona.sarmadi at enea.com
Tue Aug 2 12:05:40 CEST 2016

	Enea Linux Security Advisory

Product/package: Enea Linux 6.0: kernel (linux-ls1_3.12)
Severity: Low
Arch: ARM
CVE Name: CVE-2015-8569

This security update fixes an out-of-bounds flaw which was found in the
kernel, where the length of the sockaddr parameter was not checked in
the pptp_bind() and pptp_connect() functions. As a result, more kernel
memory was copied out than required, leaking information from the kernel
stack (including kernel addresses). A local system user could exploit
this flaw to bypass kernel ASLR or leak other information.

The (1) pptp_bind and (2) pptp_connect functions in
drivers/net/ppp/pptp.c in the Linux kernel through 4.3.3 do not verify
an address length, which allows local users to obtain sensitive
information from kernel memory and bypass the KASLR protection mechanism
via a crafted application.


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 patches.

cd Enea-Linux-6.0
$ repo sync

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

Use repo tool to download the source for Enea Linux, follow the steps below:
1. Make sure that the repo tool is installed. If not, follow the
instructions below:

$ curl https://storage.googleapis.com/git-repo-downloads/repo >
~/bin/repo $ chmod a+x ~/bin/repo

The instruction assumes that ~/bin exists and is included in the PATH

2.Use the repo tool to download the source:
$ mkdir Enea-Linux-6.0
$ cd Enea-Linux-6.0
$ repo init -u git://git.enea.com/linux/el_manifests-standard.git -b
krogoth -m <manifest file>
$ repo sync

The parameter <manifest file> depends on the target:
P2041RDB: p2041rdb/default.xml
LS1021a-IoT: ls1021aiot/default.xml
QEMUARM: qemuarm/default.xml
QEMUPCC: qemuppc/default.xml
QEMUX86: qemux86/default.xml

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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