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Gentoo Linux Security Advisory                           GLSA 200711-04
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http://security.gentoo.org/ 
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  Severity: Normal
     Title: Evolution: User-assisted remote execution of arbitrary code
      Date: November 06, 2007
      Bugs: #190861
        ID: 200711-04

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Synopsis
=======
The IMAP client of Evolution contains a vulnerability potentially
leading to the execution of arbitrary code.

Background
=========
Evolution is the mail client of the GNOME desktop environment. Camel is
the Evolution Data Server module that handles mail functions.

Affected packages
================
    -------------------------------------------------------------------
     Package                            /  Vulnerable  /    Unaffected
    -------------------------------------------------------------------
  1  gnome-extra/evolution-data-server     < 1.10.3.1      >= 1.10.3.1

Description
==========
The imap_rescan() function of the file camel-imap-folder.c does not
properly sanitize the "SEQUENCE" response sent by an IMAP server before
being used to index arrays.

Impact
=====
A malicious or compromised IMAP server could trigger the vulnerability
and execute arbitrary code with the permissions of the user running
Evolution.

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

Resolution
=========
Note that this GLSA addresses the same issue as GLSA 200707-03, but for
the 1.10 branch of Evolution Data Server.

All Evolution users should upgrade to the latest version:

   # emerge --sync
   # emerge -av --oneshot ">=gnome-extra/evolution-data-server-1.10.3.1"

References
=========
  [ 1 ] GLSA 200707-03
http://www.gentoo.org/security/en/glsa/glsa-200707-03.xml 
  [ 2 ] CVE-2007-3257
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3257 

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

http://security.gentoo.org/glsa/glsa-200711-04.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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