This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--2fNeWnKTOMRuRiXRDGsXLwicR1ewtiO18
Content-Type: text/plain; charset=UTF-
Content-Transfer-Encoding: quoted-printable

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201402-19
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: libtar: Arbitraty code execution
     Date: February 21, 2014
     Bugs: #487420
       ID: 201402-19

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

Synopsis
========

A buffer overflow in libtar might allow remote attackers to execute
arbitrary code or cause a Denial of Service condition.

Background
==========

libtar is a C library for manipulating POSIX tar files.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-libs/libtar            < 1.2.20-r2              >= 1.2.20-r2

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

An integer overflow error within the “th_read()” function when
processing long names or link extensions can be exploited to cause a
heap-based buffer overflow via a specially crafted archive.

Impact
======

A remote attacker could entice a user to open a specially crafted file
using a program linked against libtar, possibly resulting in execution
of arbitrary code with the privileges of the process or a Denial of
Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libtar users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/libtar-1.2.20-r2"

References
==========

[ 1 ] CVE-2013-4397
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4397

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

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

 http://security.gentoo.org/glsa/glsa-201402-19.xml

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 2014 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


--2fNeWnKTOMRuRiXRDGsXLwicR1ewtiO18
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

iQEcBAEBAgAGBQJTBwbmAAoJECo/aRed9267EK4H/jAZAcnSh3Ng9MexNgYL0M2/
e1+cX3vFDOLy1HDkUZrKVtRuSBM5x3tM+wv7al04Vr1Fsm/n1nWRcmKdHG74zFfv
DvhvnJ9RHGga40/f8ZQUpxGTB4/xnaoTLS0HBP9RD1/6S2SpwY/YoQVw/YK5Xg86
AKS1pyqOYTWKc5IX7khMeq1XmRNlvuKOTUaR9QeeZ9ypH6lj/idsxiy5DT5pe4UA
dISzm/gst4PnGqFDUXXgsWEcVbCTWGNYMxZUWQZXv1tJeR3ZyHVEAGEMU+uw3Bl2
XRWYhQ0KA/Exk1lQpj4TeFRqngpXhAH/LkXRIz0bYVXDItnn8h9e7Lkrdzpmc1w=
=A9uN
-----END PGP SIGNATURE-----

--2fNeWnKTOMRuRiXRDGsXLwicR1ewtiO18--