Login
Newsletter
Werbung

Sicherheit: Mehrere Probleme in libarchive
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in libarchive
ID: 200708-03
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Do, 9. August 2007, 00:47
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3641
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3644
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3645
Applikationen: libarchive

Originalnachricht


--i3lJ51RuaGWuFYNw
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200708-03
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: libarchive (formerly named as bsdtar): Multiple pax
Extension Header Vulnerabilities
Date: August 08, 2007
Bugs: #184984
ID: 200708-03

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

Synopsis
========

Multiple vulnerabilities were found in libarchive (formerly named as
app-archive/bsdtar), possibly allowing for the execution of arbitrary
code or a Denial of Service.

Background
==========

libarchive is a library for manipulating different streaming archive
formats, including certain tar variants, several cpio formats, and both
BSD and GNU ar variants.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/libarchive < 2.2.4 >= 2.2.4

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

CPNI, CERT-FI, Tim Kientzle, and Colin Percival reported a buffer
overflow (CVE-2007-3641), an infinite loop (CVE-2007-3644), and a NULL
pointer dereference (CVE-2007-3645) within the processing of archives
having corrupted PaX extension headers.

Impact
======

An attacker can trick a user or automated system to process an archive
with malformed PaX extension headers into execute arbitrary code, crash
an application using the library, or cause a high CPU load.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libarchive or bsdtar users should upgrade to the latest libarchive
version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/libarchive-2.2.4"

References
==========

[ 1 ] CVE-2007-3641
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3641
[ 2 ] CVE-2007-3644
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3644
[ 3 ] CVE-2007-3645
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3645

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

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

http://security.gentoo.org/glsa/glsa-200708-03.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
http://bugs.gentoo.org.

License
=======

Copyright 2007 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

--i3lJ51RuaGWuFYNw
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)

iQEVAwUBRrpG/zvRww8BFPxFAQL3xggAlj0Nv4+vxvKXSoA60YEXrSZOU84oQ1J/
E3LcgXsI7Ty4QffUtvxW4qLeJIXkOi5lz0buuQtzFL+O3Sj4UPpB5ths5x246SuY
R89/w98t771RhMwvVSXIqXDq5aq4mQfLmXyuO/G5p+UyJV3IdpGVzzZNj4psMSLk
f7DFTr04vRjCO2MK6RluW2th1tT2nmEfPgkju73o+4oYpty//VqyRxxn63zowgKs
a6R2/sMg56A/hIMsf2M0AJ/HCJmFGsSh0LRVYXJut85YMZvXQxSH0mmc2ma8qjgu
sD98nSdrib9l1kvOj8K9A4XuFiZIB4iu+R88H0Jg6kj3dqcmT41M9g==
=5WhD
-----END PGP SIGNATURE-----

--i3lJ51RuaGWuFYNw--
--
gentoo-announce@gentoo.org mailing list
Pro-Linux
Gewinnspiel
Neue Nachrichten
Werbung