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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1030 exim4 security update 29 October 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: exim4 Publisher: Debian Operating System: Debian GNU/Linux 6 UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-5671 Original Bulletin: http://www.debian.org/security/2012/dsa-2566 Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running exim4 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-2566-1 security@debian.org http://www.debian.org/security/ Nico Golde October 25, 2012 http://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : exim4 Vulnerability : heap-based buffer overflow Problem type : remote Debian-specific: no CVE ID : CVE-2012-5671 It was discovered that Exim, a mail transport agent, is not properly handling the decoding of DNS records for DKIM. Specifically, crafted records can yield to a heap-based buffer overflow. An attacker can exploit this flaw to execute arbitrary code. For the stable distribution (squeeze), this problem has been fixed in version 4.72-6+squeeze3. For the testing distribution (wheezy), this problem has been fixed in version 4.80-5.1. For the unstable distribution (sid), this problem has been fixed in version 4.80-5.1. We recommend that you upgrade your exim4 packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlCKYrgACgkQHYflSXNkfP+/nwCeIN7ZAsHG/zXm3DpBcI/5rrhY 8hsAn3F0AzTH5wLvICpTM6InEny5vuCy =T8xi - -----END PGP SIGNATURE----- - --------------------------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 iQIVAwUBUI3dtO4yVqjM2NGpAQKPNhAAg1o3YHdezO4tpk6dq8+NiMP6pSHEKh1E VT7rKPloLHEMqGVUXgzPyS06orHQh2KQZ/UsYbYTGEMmitFKoufe/dBMxHhcEPES r1Ps0Vl+L4TCM+Lj+NUzgVUiw9ZwiKe9XtBXcmEy+2KV2yWRemx5JRUgGLoiYh2S U70nvpE72PARKyaazFWJeytgZuhE+HMaxb+hpa0yQXGmp4HJlYdasvWH2UuR43Ww KF9CDBuC+Ecjm9MPj5c+OO59LAJJqrNB97WX/k6IQFQYtfefb8Da0XNi/Z8tnoNz Y3ChT+stmMV87wnOKeMTJ0YxUs8nJ3pXmebVr0eBOGpJdf9pminAQtuNtTpCBRBP XDigSd4r7hL8BgAv7Z60k2ZYXytVmyj0RcZahBsiWkg4A1eZbAI++6TQH6v+KDwq yn3lscfED2++4YylvLP7XPAxbTa1nt+JVtYIkPfoPoALzInh37DndojaHCenzal4 ShRVRUZ7/0wtT+WVOObIa4VU1jtjwQ2hcv71pSVLE9c3iL8q6p6MumU4JO6stv8j AUbbb0pBePjUvqSvsqr2rAd82x5RYcAoENGVFC6nmeXwnE8MnhG5OZth1OcTDSto +mZY/hhmLvIHDf3yNYxbxSCPmCsJYi29IR+QUoy649tWnFe8q6aVv6IqqSGga74E T0ebM/Up/yk= =0AcK -----END PGP SIGNATURE-----