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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0467 Invalid TLS/DTLS record attack (CVE-2012-2333) 14 May 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OpenSSL Publisher: OpenSSL Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-2333 Original Bulletin: http://www.openssl.org/news/secadv_20120510.txt - --------------------------BEGIN INCLUDED TEXT-------------------- OpenSSL Security Advisory [10 May 2012] ======================================= Invalid TLS/DTLS record attack (CVE-2012-2333) =============================================== A flaw in the OpenSSL handling of CBC mode ciphersuites in TLS 1.1, 1.2 and DTLS can be exploited in a denial of service attack on both clients and servers. DTLS applications are affected in all versions of OpenSSL. TLS is only affected in OpenSSL 1.0.1 and later. Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic fuzzing as a service testing platform. The fix was developed by Stephen Henson of the OpenSSL core team. Affected users should upgrade to OpenSSL 1.0.1c, 1.0.0j or 0.9.8x References ========== URL for this Security Advisory: http://www.openssl.org/news/secadv_20120510.txt - --------------------------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 =========================================================================== 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 iQIVAwUBT7CnHe4yVqjM2NGpAQKJrQ/+NrVv8bLJStD120vo8KScVeKzzSv9WA87 2aocIPHB+oPuT8E/VNWxZ9Noz/KCUu2Cx6bzTXG9p3nUhh7u8ZOyKUtQwOx8YPWi Xk+ZlCne2F6Ej7ZCNSR1bN620MRWuJSaidQJne4Wr0WdPHllq4HrrvHOdzIDCFNl 0Ws5OqU1WTIwpxtpEzSucwTsOxRvj6wqp7u+MIBMQqUkX1KgVq7+bE4JZgMFI/0j t71s9kPhnGhmYwpjfSOW3kSZKNVgycWmbqRzDbOYKd8LO4PQ/kr7carkR0uPVAIU OBVoawrZ+yK7RjlohoXIAj4H+JFx0anDCEpr4WBCzzSSymb9lNXP+lOocmxa71/C NVzWQfSxHO51u7T6dRndlvUfy+4tgngrtq7U+MUOfCvO+x7UTfYNl75o7UVrcR6q 8iQS1DOfV2NK7iE/ou83XgWGZCnFjnmK8+gofSn3wJCGHFlmImGajl/rx6cigPPb oaKB311OD4dzkkMjb8EdjIvEDwrBTH1cXa26R8gS2J9rtPM55lv5s/di1J3lF5e2 JPW6TFFtY4WFWBjVutklBpIWiqd5YFALzJSlcg16opW0vDf54WdfTu0o7wIQWRrF AcNgsZfq9yTAbiR990ysJuXpNcEFRx2GDkC0FVuUTMUMyYjPHbU1RqYCRvO4hp/U qXgol8Q4/PM= =M3ON -----END PGP SIGNATURE-----