Login
Newsletter
Werbung

Sicherheit: Mehrere Probleme in libpng
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in libpng
ID: 201010-01
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Mi, 6. Oktober 2010, 08:47
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0205
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1205
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2249
Applikationen: libpng

Originalnachricht

This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enigC98BA113F7C7B4F56C4C4892
Content-Type: text/plain; charset=ISO-8859-
Content-Transfer-Encoding: quoted-printable

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201010-01
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Libpng: Multiple vulnerabilities
Date: October 05, 2010
Bugs: #307637, #324153, #335887
ID: 201010-01

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

Synopsis
========

Multiple vulnerabilities in libpng might lead to privilege escalation
or a Denial of Service.

Background
==========

libpng is a standard library used to process PNG (Portable Network
Graphics) images. It is used by several programs, including web
browsers and potentially server processes.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libpng < 1.4.3 >= 1.4.3

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

Multiple vulnerabilities were found in libpng:

* The png_decompress_chunk() function in pngrutil.c does not properly
handle certain type of compressed data (CVE-2010-0205)

* A buffer overflow in pngread.c when using progressive applications
(CVE-2010-1205)

* A memory leak in pngrutil.c when dealing with a certain type of
chunks (CVE-2010-2249)

Impact
======

An attacker could exploit these vulnerabilities to cause programs
linked against the library to crash or execute arbitrary code with the
permissions of the user running the vulnerable program, which could be
the root user.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libpng users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.4.3"

References
==========

[ 1 ] CVE-2010-0205
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0205
[ 2 ] CVE-2010-1205
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1205
[ 3 ] CVE-2010-2249
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2249

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

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

http://security.gentoo.org/glsa/glsa-201010-01.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 2010 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




--------------enigC98BA113F7C7B4F56C4C4892
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.16 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAkyrmPUACgkQuhJ+ozIKI5gyIQCgoO1Z/aq3Y6qaPISF0FGCSHSg
huMAn3nEva0ybZTjIFgKZD0NwMEHA70B
=uZLE
-----END PGP SIGNATURE-----

--------------enigC98BA113F7C7B4F56C4C4892--
Pro-Linux
Gewinnspiel
Neue Nachrichten
Werbung