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Gentoo Linux Security Advisory                           GLSA 200409-35
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: Subversion: Metadata information leak
      Date: September 29, 2004
      Bugs: #65085
        ID: 200409-35

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Synopsis
========

An information leak in mod_authz_svn could allow sensitive metadata of
protected areas to be leaked to unauthorized users.

Background
==========

Subversion is a versioning system designed to be a replacement for CVS.
mod_authz_svn is an Apache module to do path-based authentication for
Subversion repositories.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  dev-util/subversion       < 1.0.8                        >= 1.0.8

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

There is a bug in mod_authz_svn that causes it to reveal logged
metadata regarding commits to protected areas.

Impact
======

Protected files themselves will not be revealed, but an attacker could
use the metadata to reveal the existence of protected areas, such as
paths, file versions, and the commit logs from those areas.

Workaround
==========

Rather than using mod_authz_svn, move protected areas into seperate
repositories and use native Apache authentication to make these
repositories unreadable.

Resolution
==========

All Subversion users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=dev-util/subversion-1.0.8"
    # emerge ">=dev-util/subversion-1.0.8"

References
==========

  [ 1 ] CAN-2004-0749
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0749
  [ 2 ] Subversion Advisory
        http://subversion.tigris.org/security/CAN-2004-0749-advisory.txt

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

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

  http://security.gentoo.org/glsa/glsa-200409-35.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 2004 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/1.0