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Gentoo Linux Security Advisory                           GLSA 200511-19
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: eix: Insecure temporary file creation
      Date: November 22, 2005
      Bugs: #112061
        ID: 200511-19

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Synopsis
=======
eix has an insecure temporary file creation vulnerability, potentially
allowing a local user to overwrite arbitrary files.

Background
=========
eix is a small utility for searching ebuilds with indexing for fast
results.

Affected packages
================
    -------------------------------------------------------------------
     Package          /   Vulnerable   /                    Unaffected
    -------------------------------------------------------------------
  1  app-portage/eix     < 0.5.0_pre2                    >= 0.5.0_pre2
                                                          *>= 0.3.0-r2

Description
==========
Eric Romang discovered that eix creates a temporary file with a
predictable name. eix creates a temporary file in /tmp/eix.*.sync where
* is the process ID of the shell running eix.

Impact
=====
A local attacker can watch the process list and determine the process
ID of the shell running eix while the "emerge --sync" command is
running, then create a link from the corresponding temporary file to a
system file, which would result in the file being overwritten with the
rights of the user running the application.

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

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

    # emerge --sync
    # emerge --ask --oneshot --verbose app-portage/eix

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

  https://security.gentoo.org/glsa/200511-19

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 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.

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