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Gentoo Linux Security Advisory                           GLSA 200412-26
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                                            https://security.gentoo.org/
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  Severity: Low
     Title: ViewCVS: Information leak and XSS vulnerabilities
      Date: December 28, 2004
      Bugs: #72461, #73772
        ID: 200412-26

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Synopsis
=======
ViewCVS is vulnerable to an information leak and to cross-site
scripting (XSS) issues.

Background
=========
ViewCVS is a browser interface for viewing CVS and Subversion version
control repositories through a web browser.

Affected packages
================
    -------------------------------------------------------------------
     Package           /      Vulnerable      /             Unaffected
    -------------------------------------------------------------------
  1  www-apps/viewcvs     <= 0.9.2_p20041207     >= 0.9.2_p20041207-r1

Description
==========
The tar export functions in ViewCVS bypass the 'hide_cvsroot' and
'forbidden' settings and therefore expose information that should be
kept secret (CAN-2004-0915). Furthermore, some error messages in
ViewCVS do not filter user-provided information, making it vulnerable
to a cross-site scripting attack (CAN-2004-1062).

Impact
=====
By using the tar export functions, a remote attacker could access
information that is configured as restricted. Through the use of a
malicious request, an attacker could also inject and execute malicious
script code, potentially compromising another user's browser.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All ViewCVS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=www-apps/viewcvs-0.9.2_p20041207-r1"

References
=========
  [ 1 ] CAN-2004-0915
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0915
  [ 2 ] CAN-2004-1062
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1062

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

  https://security.gentoo.org/glsa/200412-26

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 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.

https://creativecommons.org/licenses/by-sa/2.0/