-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ Mandriva Linux Security Advisory MDVSA-2013:072 http://www.mandriva.com/en/support/security/ _______________________________________________________________________ Package : dnsmasq Date : April 8, 2013 Affected: Business Server 1.0 _______________________________________________________________________ Problem Description: Updated dnsmasq packages fix security vulnerabilities: When dnsmasq before 2.63 is used in conjunctions with certain configurations of libvirtd, network packets from prohibited networks (e.g. packets that should not be passed in) may be sent to the dnsmasq application and processed. This can result in DNS amplification attacks for example (CVE-2012-3411). This update adds a new option --bind-dynamic which is immune to this problem. Updated dnsmasq packages fix security vulnerabilities (CVE-2013-0198): This update completes the fix for CVE-2012-3411 provided with dnsmasq-2.63. It was found that after the upstream patch for CVE-2012-3411 issue was applied, dnsmasq still: - replied to remote TCP-protocol based DNS queries (UDP protocol ones were corrected, but TCP ones not) from prohibited networks, when the --bind-dynamic option was used, - when --except-interface lo option was used dnsmasq didn't answer local or remote UDP DNS queries, but still allowed TCP protocol based DNS queries, - when --except-interface lo option was not used local / remote TCP DNS queries were also still answered by dnsmasq. This update fix these three cases. _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3411 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0198 https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0273 https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0030 _______________________________________________________________________ Updated Packages: Mandriva Business Server 1/X86_64: 89bdd7af8963a0c0e51a52b5b08295b0 mbs1/x86_64/dnsmasq-2.63-1.mbs1.x86_64.rpm 1b45290efb8694734cfa1616b5ef6294 mbs1/x86_64/dnsmasq-base-2.63-1.mbs1.x86_64.rpm 8782b678c40e2c8ccedb39f60e2b6f0d mbs1/SRPMS/dnsmasq-2.63-1.mbs1.src.rpm _______________________________________________________________________ To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing: gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98 You can view other update advisories for Mandriva Linux at: http://www.mandriva.com/en/support/security/advisories/ If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iD8DBQFRYvSNmqjQ0CJFipgRAmDuAKDqB4WerX13N+7g/zR6iU5C6b8QjACdEdEW koGb8Voa5rhgjjRVCT1ZvBg= =VQ4h -----END PGP SIGNATURE-----
