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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2010.0837.2 Stack buffer overflow vulnerability in Lotus Domino iCalendar functionality 17 September 2010 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Lotus Domino iCalendar Publisher: IBM Operating System: AIX Linux variants Solaris Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2010-3407 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg27007909 Revision History: September 17 2010: Added CVE September 15 2010: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Stack buffer overflow vulnerability in Lotus Domino iCalendar functionality Flash (Alert) Abstract MWR InfoSecurity and TippingPoint's Zero Day Initiative (ZDI) contacted IBM Lotus to report a potential buffer overflow vulnerability with the Lotus Domino iCalendar functionality. Content It is possible to cause a buffer overflow situation based on the iCalendar content included in a calendar invitation. To exploit this vulnerability, an attacker would have to send an iCalendar invitation with specific parameters. The vulnerability is exposed when the Domino server goes to process that content which could result in remote execution of code. For related information, see the following advisories: * MWR InfoSecurity: http://labs.mwrinfosecurity.com/advisories/lotus_domino_ical_stack_buffer_overflow * TippingPoint's ZDI: http://zerodayinitiative.com/advisories Recommended Fix This issue was reported to Quality Engineering as SPR# NRBY7ZPJ9V. To address the issue, customers are encouraged to upgrade to the following releases: * 8.5.2 (release notice) * 8.5.1 Fix Pack 2 (release notice) * 8.0.2 Fix Pack 5 (release notice) Workarounds There are no known workarounds. Security Rating using Common Vulnerability Scoring System (CVSS) v2 CVSS Base Score: < 9.3 > - ---- Impact Subscore: < 10 > - ---- Exploitability Subscore: < 8.6 > CVSS Temporal Score: < 7.3 > CVSS Environmental Score: < Undefined* > Overall CVSS Score: < 7.3 > Base Score Metrics: * Related exploit range/Attack Vector: < Network > * Access Complexity: < Medium > * Authentication < None > * Confidentiality Impact: < Complete > * Integrity Impact: < Complete > * Availability Impact: < Complete > Temporal Score Metrics: * Exploitability: < Proof of Concept Code > * Remediation Level: < Official Fix > * Report Confidence: < Confirmed > References: * CVSS v2 Complete Documentation * CVSS v2 Online Calculator *The CVSS Environment Score is customer environment-specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the referenced links. Cross Reference information Segment Messaging Applications Product Lotus Notes Component Calendaring and Scheduling Platform Version Edition Copyright and trademark information IBM, the IBM logo and ibm.com are trademarks of International Business Machines Corp., registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the Web at "Copyright and trademark information" at www.ibm.com/legal/copytrade.shtml. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFMktkW/iFOrG6YcBERAuZ/AJwLAj8UgXKWnwTZq92g4OZNRKcPrQCfeLCI U1Go/sFTrCw2oc0AzxfWoEA= =OINw -----END PGP SIGNATURE-----