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Category:   Application (Generic)  >   Portage Vendors:   Gentoo
Gentoo Portage May Disclose Information to Local Users
SecurityTracker Alert ID:  1019097
SecurityTracker URL:  http://securitytracker.com/id/1019097
CVE Reference:   CVE-2007-6249   (Links to External Site)
Date:  Dec 13 2007
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.1.3.11
Description:   A vulnerability was reported in Portage. A local user can gain access to certain files.

The 'etc-update' application applies incorrect permissions (based on the umask) to temporary files when updating configuration files. A local user may be able to access the temporary files when configuration files are being merged.

Mike Frysinger reported this vulnerability.

Impact:   A local user can gain access to certain temporary files.
Solution:   The vendor has issued a fixed version (2.1.3.11).

The Gentoo advisory is available at:

http://security.gentoo.org/glsa/glsa-200712-11.xml

Vendor URL:  security.gentoo.org/glsa/glsa-200712-11.xml (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Gentoo)

Message History:   None.


 Source Message Contents

Subject:  [gentoo-announce] [ GLSA 200712-11 ] Portage: Information disclosure

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Gentoo Linux Security Advisory                           GLSA 200712-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Portage: Information disclosure
      Date: December 13, 2007
      Bugs: #193589
        ID: 200712-11

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Synopsis
========

Portage may disclose sensitive information when updating configuration
files.

Background
==========

Portage is the default Gentoo package management system.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  sys-apps/portage     < 2.1.3.11                       >= 2.1.3.11

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

Mike Frysinger reported that the "etc-update" utility uses temporary
files with the standard umask, which results in the files being
world-readable when merging configuration files in a default setup.

Impact
======

A local attacker could access sensitive information when configuration
files are being merged.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Portage users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/portage-2.1.3.11"

References
==========

  [ 1 ] CVE-2007-6249
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6249

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

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

  http://security.gentoo.org/glsa/glsa-200712-11.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
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-- 
gentoo-announce@gentoo.org mailing list

 
 


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