This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--NpPf8KmbephkGGx6MUsfGGBxiTr6xxmXL
Content-Type: multipart/mixed;
 boundary="E3f9xNIVv8qNG2FXC02DiwSWklk7P9bdA";
 protected-headers="v1"
From: Thomas Deutschmann <whissi@gentoo.org>
Reply-To: security@gentoo.org
To: gentoo-announce@lists.gentoo.org
Message-ID: <26278f12-ba64-70d7-d0ab-9890e5ae8f5d@gentoo.org>
Subject: [ GLSA 201701-11 ] musl: Integer overflow

--E3f9xNIVv8qNG2FXC02DiwSWklk7P9bdA
Content-Type: text/plain; charset=utf-
Content-Transfer-Encoding: quoted-printable

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201701-11
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: musl: Integer overflow
     Date: January 02, 2017
     Bugs: #597498
       ID: 201701-11

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

An integer overflow in musl might allow an attacker to execute
arbitrary code.

Background
==========

musl is a "libc", an implementation of the standard library
functionality described in the ISO C and POSIX standards, plus common
extensions, intended for use on Linux-based systems.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-libs/musl              < 1.1.15-r2              >= 1.1.15-r2

Description
===========

A vulnerability was discovered in musl's tre_tnfa_run_parallel function
buffer overflow logic, due to the incorrect use of integer types and
missing overflow checks.

Impact
======

An attacker, who controls the regular expression and/or string being
searched, could execute arbitrary code with the privileges of the
process.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All musl users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-libs/musl-1.1.15-r2"

References
==========

[ 1 ] CVE-2016-8859
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-8859

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/201701-11

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2017 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5


--E3f9xNIVv8qNG2FXC02DiwSWklk7P9bdA--

--NpPf8KmbephkGGx6MUsfGGBxiTr6xxmXL
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0
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=ikvf
-----END PGP SIGNATURE-----

--NpPf8KmbephkGGx6MUsfGGBxiTr6xxmXL--