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Category:   Application (E-mail Client)  >   Evolution Vendors:   Gnome Development Team
(Red Hat Issues Fix) Evolution Buffer Overflow in Processing iCalendar Timezone Strings Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020172
SecurityTracker URL:  http://securitytracker.com/id/1020172
CVE Reference:   CVE-2008-1108   (Links to External Site)
Date:  Jun 4 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.22.1
Description:   A vulnerability was reported in Evolution. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create an iCalendar attachment with a specially crafted timezone string that, when loaded by the target user, will trigger a buffer overflow and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The vendor was notified on May 27, 2008.

Alin Rad Pop of Secunia Research reported this vulnerability.

The original advisory is available at:

http://secunia.com/secunia_research/2008-22/advisory/

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0517.html

Vendor URL:  www.gnome.org/projects/evolution/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4.5.z

Message History:   This archive entry is a follow-up to the message listed below.
Jun 4 2008 Evolution Buffer Overflow in Processing iCalendar Timezone Strings Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2008:0517-01] Critical: evolution security update


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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: evolution security update
Advisory ID:       RHSA-2008:0517-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0517.html
Issue date:        2008-06-04
CVE Names:         CVE-2008-1108 
=====================================================================

1. Summary:

Updated evolution packages that address a buffer overflow vulnerability are
now available for Red Hat Enterprise Linux 4.5 Extended Update Support.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4.5.z - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 4.5.z - i386, ia64, x86_64

3. Description:

Evolution is the integrated collection of e-mail, calendaring, contact
management, communications and personal information management (PIM) tools
for the GNOME desktop environment.

A flaw was found in the way Evolution parsed iCalendar timezone attachment
data. If mail which included a carefully crafted iCalendar attachment was
opened, arbitrary code could be executed as the user running Evolution.
(CVE-2008-1108)

Red Hat would like to thank Alin Rad Pop of Secunia Research for
responsibly disclosing this issue.

All users of Evolution should upgrade to these updated packages, which
contains a backported patch which resolves this issue.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  

This update is available via Red Hat Network.  Details on how to use 
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

448540 - CVE-2008-1108 evolution: iCalendar buffer overflow via large timezone specification

6. Package List:

Red Hat Enterprise Linux AS version 4.5.z:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/4AS-4.5.z/en/os/SRPMS/evolution-2.0.2-35.0.4.el4_5.2.src.rpm

i386:
evolution-2.0.2-35.0.4.el4_5.2.i386.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.i386.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.i386.rpm

ia64:
evolution-2.0.2-35.0.4.el4_5.2.ia64.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.ia64.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.ia64.rpm

ppc:
evolution-2.0.2-35.0.4.el4_5.2.ppc.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.ppc.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.ppc.rpm

s390:
evolution-2.0.2-35.0.4.el4_5.2.s390.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.s390.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.s390.rpm

s390x:
evolution-2.0.2-35.0.4.el4_5.2.s390x.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.s390x.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.s390x.rpm

x86_64:
evolution-2.0.2-35.0.4.el4_5.2.x86_64.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.x86_64.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.x86_64.rpm

Red Hat Enterprise Linux ES version 4.5.z:

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/4ES-4.5.z/en/os/SRPMS/evolution-2.0.2-35.0.4.el4_5.2.src.rpm

i386:
evolution-2.0.2-35.0.4.el4_5.2.i386.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.i386.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.i386.rpm

ia64:
evolution-2.0.2-35.0.4.el4_5.2.ia64.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.ia64.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.ia64.rpm

x86_64:
evolution-2.0.2-35.0.4.el4_5.2.x86_64.rpm
evolution-debuginfo-2.0.2-35.0.4.el4_5.2.x86_64.rpm
evolution-devel-2.0.2-35.0.4.el4_5.2.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1108
http://www.redhat.com/security/updates/classification/#critical

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.
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