This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enigAD47327D3945F85092EC7D0F
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200509-12
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: Apache, mod_ssl: Multiple vulnerabilities
      Date: September 19, 2005
      Bugs: #103554, #104807
        ID: 200509-12

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

Synopsis
========

mod_ssl and Apache are vulnerable to a restriction bypass and a
potential local privilege escalation.

Background
==========

The Apache HTTP server is one of the most popular web servers on the
Internet. mod_ssl provides SSL v2/v3 and TLS v1 support for Apache 1.3
and is also included in Apache 2.

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

    -------------------------------------------------------------------
     Package          /   Vulnerable   /                    Unaffected
    -------------------------------------------------------------------
  1  net-www/mod_ssl       < 2.8.24                          >= 2.8.24
  2  net-www/apache      < 2.0.54-r15                    >= 2.0.54-r15
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

mod_ssl contains a security issue when "SSLVerifyClient optional" is
configured in the global virtual host configuration (CAN-2005-2700).
Also, Apache's httpd includes a PCRE library, which makes it vulnerable
to an integer overflow (CAN-2005-2491).

Impact
======

Under a specific configuration, mod_ssl does not properly enforce the
client-based certificate authentication directive, "SSLVerifyClient
require", in a per-location context, which could be potentially used by
a remote attacker to bypass some restrictions. By creating a specially
crafted ".htaccess" file, a local attacker could possibly exploit
Apache's vulnerability, which would result in a local privilege
escalation.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All mod_ssl users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-www/mod_ssl-2.8.24"

All Apache 2 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-www/apache-2.0.54-r15"

References
==========

  [ 1 ] CAN-2005-2491
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2491
  [ 2 ] CAN-2005-2700
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2700

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

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

  http://security.gentoo.org/glsa/glsa-200509-12.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 2005 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/2.0


--------------enigAD47327D3945F85092EC7D0F
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)

iD8DBQFDLnXcvcL1obalX08RAhidAJ90eYSh42R+Nmbz9wng7j1f7fr+SgCbBEqK
/0wGbRcA8+h7jnyfgkoMMzI=
=BP05
-----END PGP SIGNATURE-----

--------------enigAD47327D3945F85092EC7D0F--
-- 
gentoo-announce@gentoo.org mailing list