__________________________________________________________

The U.S. Department of Energy
Computer Incident Advisory Capability
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__________________________________________________________

INFORMATION BULLETIN

Evolution Security Update
[Red Hat RHSA-2008:0514-9]

June 6, 2008 17:00 GMT Number S-309
______________________________________________________________________________
PROBLEM: A flaw was found in the way Evolution parsed iCalendar timezone
attachment data.
PLATFORM: RHEL Desktop Workstation (v. 5 client)
RHEL Optional Productivity Applications (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
DAMAGE: Execution arbitrary code.
SOLUTION: Upgrade to the appropriate version.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. If the Itip Formatter plug-in was disabled
ASSESSMENT: and a user opened a mail with a carefully crafted iCalendar
attachment, arbitrary code could be executed as the user
running Evolution.
______________________________________________________________________________
CVSS 2 BASE SCORE: 7.5
TEMPORAL SCORE: 6.2
VECTOR: (AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C)
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-309.shtml
ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2008-0514.html
ADDITIONAL LINK: https://rhn.redhat.com/errata/RHSA-2008-0515.html
CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=
CVE-2008-1108 CVE-2008-1109
______________________________________________________________________________
[***** Start Red Hat RHSA-2008:0514-9 *****]

Important: evolution security update
Advisory: RHSA-2008:0514-9
Type: Security Advisory
Severity: Important
Issued on: 2008-06-04
Last updated on: 2008-06-04
Affected Products: RHEL Desktop Workstation (v. 5 client)
RHEL Optional Productivity Applications (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
OVAL: com.redhat.rhsa-20080514.xml
CVEs (cve.mitre.org): CVE-2008-1108
CVE-2008-1109

Details
Updated evolution packages that fix two buffer overflow vulnerabilities are
now available for Red Hat Enterprise Linux 5.

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

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 the Itip Formatter plug-in was disabled and a user opened a mail
with a carefully crafted iCalendar attachment, arbitrary code could be
executed as the user running Evolution. (CVE-2008-1108)

Note: the Itip Formatter plug-in, which allows calendar information
(attachments with a MIME type of "text/calendar") to be displayed as part
of the e-mail message, is enabled by default.

A heap-based buffer overflow flaw was found in the way Evolution parsed
iCalendar attachments with an overly long "DESCRIPTION" property string. If
a user responded to a carefully crafted iCalendar attachment in a
particular way, arbitrary code could be executed as the user running
Evolution. (CVE-2008-1109).

The particular response required to trigger this vulnerability was as
follows:

1. Receive the carefully crafted iCalendar attachment.
2. Accept the associated meeting.
3. Open the calender the meeting was in.
4. Reply to the sender.

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

All Evolution users should upgrade to these updated packages, which contain
backported patches which resolves these issues.

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

Updated packages
RHEL Desktop Workstation (v. 5 client)

--------------------------------------------------------------------------------

IA-32:
evolution-devel-2.12.3-8.el5_2.2.i386.rpm dc283ebfd4d2c76dd0854a3206ad9ab7

x86_64:
evolution-devel-2.12.3-8.el5_2.2.i386.rpm dc283ebfd4d2c76dd0854a3206ad9ab7
evolution-devel-2.12.3-8.el5_2.2.x86_64.rpm e3b26fcf9ef22015cc56f22616334c62

RHEL Optional Productivity Applications (v. 5 server)

--------------------------------------------------------------------------------

SRPMS:
evolution-2.12.3-8.el5_2.2.src.rpm 6207e1ac8722e571e3ed8a0531fa7d01

IA-32:
evolution-2.12.3-8.el5_2.2.i386.rpm 5defe4f97a2f52564703629492d444a5
evolution-devel-2.12.3-8.el5_2.2.i386.rpm dc283ebfd4d2c76dd0854a3206ad9ab7
evolution-help-2.12.3-8.el5_2.2.i386.rpm bb27fcf668a8fad6b7a3e72d812c8ef0

x86_64:
evolution-2.12.3-8.el5_2.2.i386.rpm 5defe4f97a2f52564703629492d444a5
evolution-2.12.3-8.el5_2.2.x86_64.rpm 4a84d938b52013550dd16a1f888cca4d
evolution-devel-2.12.3-8.el5_2.2.i386.rpm dc283ebfd4d2c76dd0854a3206ad9ab7
evolution-devel-2.12.3-8.el5_2.2.x86_64.rpm e3b26fcf9ef22015cc56f22616334c62
evolution-help-2.12.3-8.el5_2.2.x86_64.rpm 41b98a9e7bf231567f5fa7cb55e97b90

Red Hat Enterprise Linux Desktop (v. 5 client)

--------------------------------------------------------------------------------

SRPMS:
evolution-2.12.3-8.el5_2.2.src.rpm 6207e1ac8722e571e3ed8a0531fa7d01

IA-32:
evolution-2.12.3-8.el5_2.2.i386.rpm 5defe4f97a2f52564703629492d444a5
evolution-help-2.12.3-8.el5_2.2.i386.rpm bb27fcf668a8fad6b7a3e72d812c8ef0

(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)
448540 - CVE-2008-1108 evolution: iCalendar buffer overflow via large timezone specification
448541 - CVE-2008-1109 evolution: iCalendar buffer overflow via large description parameter

References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1108
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1109
http://www.redhat.com/security/updates/classification/#important

--------------------------------------------------------------------------------
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

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

[***** End Red Hat RHSA-2008:0514-9 *****]
_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Red Hat for the
information contained in this bulletin.
_______________________________________________________________________________

CIAC, the Computer Incident Advisory Capability, is the computer
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(DOE) and the emergency backup response team for the National
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