__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN GNOME Evolution Vulnerability [US-CERT Vulnerability Note VU#512491] March 27, 2008 13:00 GMT Number S-230 ______________________________________________________________________________ PROBLEM: The GNOME Evolution mail client contains a format string vulnerability that may allow an attacker to execute code. PLATFORM: Evolution 2.12.3 and earlier DAMAGE: Execute arbitrary code or cause Evolutionto crash. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote, unauthenticated attacker may be ASSESSMENT: able to execute arbitrary code or cause Evolution to crash. ______________________________________________________________________________ CVSS 2 BASE SCORE: 6.4 TEMPORAL SCORE: 5.0 VECTOR: (AV:N/AC:L/Au:N/C:P/I:P/A:N/E:POC/RL:OF/RC:C) ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-230.shtml ORIGINAL BULLETIN: http://www.kb.cert.org/vuls/id/512491 ADDITIONAL LINK: http://secunia.com/advisories/29057 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2008-0072 ______________________________________________________________________________ [***** Start US-CERT Vulnerability Note VU#512491 *****] Vulnerability Note VU#512491 GNOME Evolution format string vulnerability Overview The GNOME Evolution mail client contains a format string vulnerability that may allow an attacker to execute code. I. Description Evolution is the default mail client for the GNOME desktop environment. Evolution supports both GPG and S/MIME mail encryption. From Secunia Advisory SA29057: A format string error in the "emf_multipart_encrypted()" function in mail/em-format.c when displaying data (e.g. the "Version:" field) from an encrypted e-mail message can be exploited to execute arbitrary code via a specially crafted e-mail message. Successful exploitation requires that the user selects a malicious e-mail message. II. Impact A remote, unauthenticated attacker may be able to execute arbitrary code or cause Evolution to crash. III. Solution Upgrade The Evolution team has released a patch to address this issue. See GNOME Bug 520745 for more information. Users and administrators who do not compile Evolution from source should obtain fixed software from their operating system vendor. Systems Affected Vendor Status Date Updated Debian GNU/Linux Vulnerable 7-Mar-2008 Gentoo Linux Vulnerable 7-Mar-2008 GNOME Vulnerable 7-Mar-2008 Red Hat, Inc. Vulnerable 7-Mar-2008 Ubuntu Vulnerable 7-Mar-2008 References http://bugzilla.gnome.org/show_bug.cgi?id=520745 http://secunia.com/advisories/29057/ http://secunia.com/secunia_research/2008-8/advisory/ http://bugzilla.gnome.org/attachment.cgi?id=106681&action=view https://www.securecoding.cert.org/confluence/x/WwE Credit This vulnerability was made public by Ulf Harnhammar of Secunia Research. This document was written by Ryan Giobbi. Other Information Date Public 03/05/2008 Date First Published 03/07/2008 09:19:54 AM Date Last Updated 03/07/2008 CERT Advisory CVE Name CVE-2008-0072 US-CERT Technical Alerts Metric 1.80 Document Revision 19 [***** End US-CERT Vulnerability Note VU#512491 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of US-CERT for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. 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A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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