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Publisher Name: OpenPKG GmbH Publisher Home: http://openpkg.com/ Advisory Id (public): OpenPKG-SA-2007.007 Advisory Type: OpenPKG Security Advisory (SA) Advisory Directory: http://openpkg.com/go/OpenPKG-SA Advisory Document: http://openpkg.com/go/OpenPKG-SA-2007.007 Advisory Published: 2007-01-28 10:56 UTC Issue Id (internal): OpenPKG-SI-20070125.01 Issue First Created: 2007-01-25 Issue Last Modified: 2007-01-28 Issue Revision: 02 ____________________________________________________________________________ Subject Name: bind Subject Summary: DNS Server Subject Home: http://www.isc.org/products/BIND/ Subject Versions: * < 9.3.4 Vulnerability Id: CVE-2007-0493, CVE-2007-0494 Vulnerability Scope: global (not OpenPKG specific) Attack Feasibility: run-time Attack Vector: remote network Attack Impact: denial of service Description: As confirmed by vendor security advisories [0][1], two security issues exist in the DNS server BIND [2], versions up to 9.3.4. The first issue is a "use after free" vulnerability which allows remote attackers to cause a Denial of Service (DoS) via unspecified vectors that cause BIND to "dereference (read) a freed fetch context". The second issue allows remote attackers to cause a Denial of Service (DoS) via a type "*" (ANY) DNS query response that contains multiple resource record (RR) sets in the answer section, which triggers an assertion error. To be vulnerable you need to have enabled DNSSEC validation in the configuration by specifying "trusted-keys". References: [0] http://marc.theaimsgroup.com/?l=bind-announce&m=116968519321296&w=2 [1] http://marc.theaimsgroup.com/?l=bind-announce&m=116968519300764&w=2 [2] http://www.isc.org/products/BIND/ ____________________________________________________________________________ Primary Package Name: bind Primary Package Home: http://openpkg.org/go/package/bind Corrected Distribution: Corrected Branch: Corrected Package: OpenPKG Enterprise E1.0-SOLID bind-9.3.2-E1.0.2 OpenPKG Community 2-STABLE-20061018 bind-9.3.4-2.20070127 OpenPKG Community 2-STABLE bind-9.3.4-2.20070127 OpenPKG Community CURRENT bind-9.3.4-20070125 ____________________________________________________________________________ For security reasons, this document was digitally signed with the OpenPGP public key of the OpenPKG GmbH (public key id 61B7AE34) which you can download from http://openpkg.com/openpkg.com.pgp or retrieve from the OpenPGP keyserver at hkp://pgp.openpkg.org/. Follow the instructions at http://openpkg.com/security/signatures/ for more details on how to verify the integrity of this document. ____________________________________________________________________________ -----BEGIN PGP SIGNATURE----- Comment: OpenPKG GmbH <http://openpkg.com/> iD8DBQFFvHNKZwQuyWG3rjQRAm9zAKCuDrLbHQGefIAFxjt1NAzfQOQaJwCdGkhz ++8dS8R6/Nv5B+PwKFDy4Q8= =yQ8S -----END PGP SIGNATURE-----
