__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Multiple Problems in Ethereal Versions 0.7.7 to 0.10.14 [Docid: enpa-sa-00023] October 21, 2005 16:00 GMT Number Q-030 [REVISED 26 Oct 2005] [REVISED 02 Mar 2006] [REVISED 01 May 2006] ______________________________________________________________________________ PROBLEM: It may be possible to make Ethereal crash, use up available memory, or run arbitrary code by injecting a purposefully malformed packet onto the wire or by convincing someone to read a malformed packet trace file. PLATFORM: Versions 0.7.7 up to and including 0.10.12 Red Hat Desktop (v. 3) & (v. 4) Red Hat Enterprise Linux AS, ES, WS (v. 2.1), (v. 3), & (v. 4) Solaris 10 Operating System Ethereal versions 0.8.5 up to and including 0.10.14 DAMAGE: Allows remote attackers to execute arbitrary code via a srvloc packet with a modified length value. SOLUTION: Upgrade to 0.99.0. ______________________________________________________________________________ VULNERABILITY The risk is HIGH. Allows remote attackers to execute arbitrary ASSESSMENT: code via a srvloc packet with a modified length value. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-030.shtml ORIGINAL BULLETIN: http://ethereal.com/appnotes/enpa-sa-00021.html ADDITIONAL LINKS: Ethereal Docid: enpa-sa-00020 http://ethereal.com/appnotes/enpa-sa-00020.html iDefense Security Advisory 10.20.05 http://idefense.com/application/poi/display?id=323&type= vulnerabilities Red Hat RHSA-2005:799-6 https://rhn.redhat.com/errata/RHSA-2005-799.html Sun Alert ID: 102198 http://www.sunsolve.sun.com/search/document.do?assetkey=1 -26-102198-1&searchclause=%22category:security%22% 2420%22availability,%2420security%22%2420category: security Ethereal Docid: enpa-sa-00023 http://ethereal.com/appnotes/enpa-sa-00023.html CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2005-3241 CVE-2005-3242 CVE-2005-3243 CVE-2005-3244 CVE-2005-3245 CVE-2005-3246 CVE-2005-3247 CVE-2005-3248 CVE-2005-3249 CVE-2005-3184 CVE-2005-2491 ______________________________________________________________________________ REVISION HISTORY: 10/26/2005 - revised to add a link to Red Hat RHSA-2005:799-6 for Red Hat Desktop (v. 3) & (v. 4), and Red Hat Enterprise Linux AS, ES, WS (v. 2.1), (v. 3), & (v. 4). 03/02/2006 - revised to add a link to Sun Alert ID: 102198 for Solaris 10 Operating System. 05/01/2006 - revised to add a link to Ethereal Docid: enpa-sa-00023 for security vulnerabilities in versions 0.8.5 to 0.10.14 [***** Start Docid: enpa-sa-00021 *****] Summary Name: Multiple problems in Ethereal versions 0.7.7 to 0.10.12 Docid: enpa-sa-00021 Date: October 19, 2005 Versions affected: 0.7.7 up to and including 0.10.12 Severity: High Details Description: Our testing program has turned up several more security issues: * The ISAKMP dissector could exhaust system memory Versions affected: 0.10.11 to 0.10.12. CVE: CAN-2005-3241 * The FC-FCS dissector could exhaust system memory. Versions affected: 0.9.0 to 0.10.12. CVE: CAN-2005-3241 * The RSVP dissector could exhaust system memory. Versions affected: 0.9.4 to 0.10.12. CVE: CAN-2005-3241 * The ISIS LSP dissector could exhaust system memory. Versions affected: 0.8.18 to 0.10.12. CVE: CAN-2005-3241 * The IrDA dissector could crash. Versions affected: 0.10.0 to 0.10.12. CVE: CAN-2005-3242 * The SLIMP3 dissector could overflow a buffer. Versions affected: 0.9.1 to 0.10.12. CVE: CAN-2005-3243 * The BER dissector was susceptible to an infinite loop. Versions affected: 0.10.3 to 0.10.12. CVE: CAN-2005-3244 * The SCSI dissector could dereference a null pointer and crash. Versions affected: 0.10.3 to 0.10.12. CVE: CAN-2005-3246 * If the "Dissect unknown RPC program numbers" option was enabled, the ONC RPC dissector might be able to exhaust system memory. This option is disabled by default. Versions affected: 0.7.7 to 0.10.12. CVE: CAN-2005-3245 * The sFlow dissector could dereference a null pointer and crash. Versions affected: 0.9.14 to 0.10.12. CVE: CAN-2005-3246 * The RTnet dissector could dereference a null pointer and crash. Versions affected: 0.10.8 to 0.10.12. CVE: CAN-2005-3246 * The SigComp UDVM could go into an infinite loop or crash. Versions affected: 0.10.12. CVE: CAN-2005-3247 * If SMB transaction payload reassembly is enabled the SMB dissector could crash. This preference is disabled by default. Versions affected: 0.9.7 to 0.10.12. CVE: CAN-2005-3242 * The X11 dissector could attempt to divide by zero. Versions affected: 0.10.1 to 0.10.12. CVE: CAN-2005-3248 * The AgentX dissector could overflow a buffer. Versions affected: 0.10.10 to 0.10.12. CVE: CAN-2005-3243 * The WSP dissector could free an invalid pointer. Versions affected: 0.10.1 to 0.10.12. CVE: CAN-2005-3249 * iDEFENSE found a buffer overflow in the SRVLOC dissector. Versions affected: 0.10.0 to 0.10.12. CVE: CAN-2005-3184 Ethereal uses the PCRE regular expression library. Security vulnerabilities have been discovered in older versions of this library. The Windows installer now ships with PCRE 6.3, which fixes these vulnerabilities. CVE: CAN-2005-2491 Impact: It may be possible to make Ethereal crash, use up available memory, 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 0.10.13. Due to the severity and scope of the defects that have been discovered, no workaround is available. [***** End Docid: enpa-sa-00021 *****] _______________________________________________________________________________ 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. 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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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