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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0910 isc-dhcp security update 24 September 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: isc-dhcp Publisher: Debian Operating System: Debian GNU/Linux 6 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-3955 Reference: ESB-2012.0882 Original Bulletin: http://www.debian.org/security/2012/dsa-2551 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-2551-1 security@debian.org http://www.debian.org/security/ Nico Golde September 23, 2012 http://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : isc-dhcp Vulnerability : denial of service Problem type : remote Debian-specific: no CVE ID : CVE-2012-3955 Glen Eustace discovered that the ISC DHCP server, a server for automatic IP address assignment, is not properly handling changes in the expiration times of a lease. An attacker may use this flaw to crash the service and cause denial of service conditions, by reducing the expiration time of an active IPv6 lease. For the stable distribution (squeeze), this problem has been fixed in version 4.1.1-P1-15+squeeze8. For the testing distribution (wheezy), this problem has will be fixed soon. For the unstable distribution (sid), this problem has been fixed in version 4.2.4-2. We recommend that you upgrade your isc-dhcp 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) iEYEARECAAYFAlBfii8ACgkQHYflSXNkfP+K4QCgnL59/MBU92OBA5Z2owj8pkFM EVoAmQFqFyPsDn33SQV9xPW7Igk2v/4t =dS6M - -----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. 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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 iQIVAwUBUF+yie4yVqjM2NGpAQIhWBAAkiMtjyuaywJeiW7bgGF6PWqjZCbzpel2 2qbmZ7C74hXIyn8PJeIQgotYpokLBdVq84Fp23bkGcTb1dfnj0uoPp+l5pJMIPtu KXngsoxmgZaOVaj4V3n4dnflWl01Nwrd3IIBe2m+Ony0OYxb64nHbdWs486Nfq0h WaRUV0sCNbUdlnb6sp1EG1iuoLFhzg/KEblLGjWgQIE2culh7pURl4sWIez+4onh yJfgnwlILgNYG+63FXpOW34vWEo1O6WSli70+WLZT9sszm/3VuLidoQwnHNbIF3W R25MwL+ENy0dKCX0B1md7sHMJn67yylcvxkbgy53QF6EnoyIBkDYUzC8O/FaIHWK nkckdZla/ngsLXYfMfe5XCxa4vCHOz6xeO1y9OT5cj8u+DP/33RhpOn27fsWCAEX zKEfFZYUIiRVqvU1jeysTQZBwVxf8bQO2k8PYuQ4tWcaFVMUl7dUyNvthf7Doe09 g+bjOzxT1nuVaXvk8GRurKU6VfwwqvRn4r3traSVU4Vp+P5WsjhjXwyin8lLpc5N 4sF5l19cJ/E73FQv08IUv5K3k6/h9WL65TZXFnTVuyghYnVgA2wZchyUZHNjcrEW oIaaUaNAyit9HY2PR5gDl444GMWGB7SBMOYmRtDy+O1y4WYt8ILn+3AuteM/LYQ1 JKufS3z28Cg= =x08V -----END PGP SIGNATURE-----