[Full-Disclosure] [ GLSA 200405-14 ] Buffer overflow in Subversion

From: Joshua J. Berry (condordes_at_gentoo.org)
Date: 05/20/04

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    Date: Thu, 20 May 2004 11:38:40 -0700
    
    
    

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    Gentoo Linux Security Advisory GLSA 200405-14
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: Buffer overflow in Subversion
          Date: May 20, 2004
          Bugs: #51462
            ID: 200405-14

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    Synopsis
    ========

    There is a vulnerability in the Subversion date parsing code which may
    lead to denial of service attacks, or execution of arbitrary code.
    Both the client and server are vulnerable.

    Background
    ==========

    Subversion is a version control system intended to eventually replace
    CVS. Like CVS, it has an optional client-server architecture (where the
    server can be an Apache server running mod_svn, or an ssh program as in
    CVS's :ext: method). In addition to supporting the features found in
    CVS, Subversion also provides support for moving and copying files and
    directories.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 dev-util/subversion <= 1.0.2 >= 1.0.3

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

    All releases of Subversion prior to 1.0.3 have a vulnerability in the
    date-parsing code. This vulnerability may allow denial of service or
    arbitrary code execution as the Subversion user. Both the client and
    server are vulnerable, and write access is NOT required to the server's
    repository.

    Impact
    ======

    All servers and clients are vulnerable. Specifically, clients that
    allow other users to write to administrative files in a working copy
    may be exploited. Additionally all servers (whether they are httpd/DAV
    or svnserve) are vulnerable. Write access to the server is not
    required; public read-only Subversion servers are also exploitable.

    Workaround
    ==========

    There is no known workaround at this time. All users are encouraged to
    upgrade to the latest available version.

    Resolution
    ==========

    All Subversion users should upgrade to the latest stable version:

        # emerge sync

        # emerge -pv ">=dev-util/subversion-1.0.3"
        # emerge ">=dev-util/subversion-1.0.3"

    References
    ==========

      [ 1 ] Subversion Announcement
            http://subversion.tigris.org/servlets/ReadMsg?list=announce&msgNo=125
      [ 2 ] E-Matters Advisory
            http://security.e-matters.de/advisories/082004.html

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

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

         http://security.gentoo.org/glsa/glsa-200405-14.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 Technologies, 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

    
    

    _______________________________________________
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  • Next message: Thierry Carrez: "[Full-Disclosure] [ GLSA 200405-12 ] CVS heap overflow vulnerability"

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