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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0424 -- [OpenBSD] potential denial of service problem in sendmail 23 June 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Sendmail Publisher: OpenBSD Operating System: OpenBSD 3.9 and prior Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2006-1173 Ref: AL-2006.0048 Original Bulletin: http://openbsd.org/errata.html#sendmail2 - --------------------------BEGIN INCLUDED TEXT-------------------- A potential denial of service problem has been found in sendmail. A malformed MIME message could trigger excessive recursion which will lead to stack exhaustion. This denial of service attack only affects delivery of mail from the queue and delivery of a malformed message. Other incoming mail is still accepted and delivered. However, mail messages in the queue may not be reattempted if a malformed MIME message exists. Patches for the respective releases: ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/003_sendmail2.patch ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/008_sendmail2.patch - --------------------------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. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. 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 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== 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 iQCVAwUBRJs8Oih9+71yA2DNAQIkkgP6A5rnCGZaYn6lXdHiIMDCifBICzWn+pLb xf+0J7y5dmlQHWfyCB+La5TOIIQWiMwIUd+egRWT5X/xtaqpY5iO8mfgXsb3bt9w T4tlUcdcPAEE37Mq7GjK2SAqGCLRoRo+pUWEaeI90+7WbBibLAQbjEwb5L4mqxIl ynyDoPgQk5g= =UUuw -----END PGP SIGNATURE-----