__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Ethereal versions 0.9.1 to 0.10.9 Vulnerabilities [Ethereal Application Notes (enpa-sa-00018)] March 14, 2005 18:00 GMT Number P-154 [REVISED 18 Mar 2005] [REVISED 05 Apr 2005] [REVISED 28 Apr 2005] ______________________________________________________________________________ PROBLEM: Several security vulnerabilities have been identified in Ethereal version 0.9.1 to 0.10.9. Ethereal is a widely used open source network protocol analyzer. PLATFORM: Ethereal versions 0.9.1 to 0.10.9 Red Hat Desktop (v. 3 & v. 4) Red Hat Enterprise Linux AS, ES, WS (v. 2.1, v. 3, & v. 4) Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor SGI Advanced Linux Environment 3, SGI ProPack 3 Service Pack 4 Debian GNU/Linux 3.0 (woody) DAMAGE: Flaws that may cause buffer overflows or that may lead to a denial of service were discovered. Details are listed below, as follows: CAN-2005-0704 - Buffer overflow in Etheric dissector CAN-2005-0705 - GPRS-LLC dissector could crash if "ignore cipher bit" option is enabled. CAN-2005-0699 - Buffer overflow in the 3GPP2 A11 dissector IAPP dissector buffer overflow JXTA issector may cause denial of service sFlow dissector may cause a denial of service SOLUTION: Apply the security upgrade. ______________________________________________________________________________ VULNERABILITY The risk is HIGH. An attacker may cause a denial of service or ASSESSMENT: execute arbitrary code. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/p-154.shtml ORIGINAL BULLETIN: http://ethereal.com/appnotes/enpa-sa-00018.html ADDITIONAL LINKS: Red Hat RHSA-2005:306-10 https://rhn.redhat.com/errata/RHSA-2005-306.html SGI Security Advisory 20050303-01-U Security Update #31 http://www.sgi.com/support/security/advisories.html Debian Security Advisory DSA 718-2 http://www.debian.org/security/2005/dsa-718 CVE/CAN: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2005-0704 CAN-2005-0705 CAN-2005-0699 ______________________________________________________________________________ REVISION HISTORY: 03/18/2005 - revised to add a link to Red Hat RHSA-2005:306-10 for Red Hat Desktop (v. 3 & v.4), Red Hat Enterprise Linux AS, ES, WS (v. 2.1, v.3, & v. 4), and for Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor. 04/05/2005 - revised to add a link to SGI Security Advisory Update #31, patch 10152 for SGI ProPack 3 Service Pack 4. 04/28/2005 - revised to add a link to Debian Security Advisory DSA 718-2 that provides updated packages addressing these vulnerabilities. [***** Start Ethereal Application Notes (enpa-sa-00018) *****] Summary Name: Multiple problems in Ethereal versions 0.9.1 to 0.10.9 Docid: enpa-sa-00018 Date: March 11, 2005 Versions affected: 0.9.1 up to and including 0.10.9 Severity: High Details Description: Issues have been discovered in the following protocol dissectors: * Matevz Pustisek discovered a buffer overflow in the Etheric dissector. Versions affected: 0.10.7 to 0.10.9 CVE: CAN-2005-0704 * The GPRS-LLC dissector could crash if the "ignore cipher bit" option was enabled. Versions affected: 0.10.7 - 0.10.9 CVE: CAN-2005-0705 * Diego Giago discovered a buffer overflow in the 3GPP2 A11 dissector. This flaw was later reported by Leon Juranic. Versions affected: 0.10.3 - 0.10.9 CVE: CAN-2005-0699 * Leon Juranic discovered a buffer overflow in the IAPP dissector. CVE: CAN-2005-0739 Versions affected: 0.9.1 to 0.10.9. * A bug in the JXTA dissector could make Ethereal crash. Versions affected: 0.10.9. * A bug in the sFlow dissector could make Ethereal crash. Versions affected: 0.9.14 to 0.10.9. Impact: It may be possible to make Ethereal crash or run arbitrary code by injecting a purposefully malformed packet onto the wire or by convincing someone to read a malformed packet trace file. Resolution: Upgrade to 0.10.10. If you are running a version prior to 0.10.10 and you cannot upgrade, you can disable the 3GPP2 A11, Etheric, GPRS-LLC, IAPP, JXTA, and sFlow protocol dissectors by selecting Analyze->Enabled Protocols... and deselecting them from the list. However, it is strongly recommended that you upgrade to 0.10.10. [***** End Ethereal Application Notes (enpa-sa-00018) *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Ethereal 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. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. 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. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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