-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ Mandriva Linux Security Advisory MDVSA-2010:217 http://www.mandriva.com/security/ _______________________________________________________________________ Package : dovecot Date : October 30, 2010 Affected: 2010.0, 2010.1 _______________________________________________________________________ Problem Description: Multiple vulnerabilities was discovered and corrected in dovecot: Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.beta2 grants the admin permission to the owner of each mailbox in a non-public namespace, which might allow remote authenticated users to bypass intended access restrictions by changing the ACL of a mailbox, as demonstrated by a symlinked shared mailbox (CVE-2010-3779). Dovecot 1.2.x before 1.2.15 allows remote authenticated users to cause a denial of service (master process outage) by simultaneously disconnecting many (1) IMAP or (2) POP3 sessions (CVE-2010-3780). The ACL plugin in Dovecot 1.2.x before 1.2.13 propagates INBOX ACLs to newly created mailboxes in certain configurations, which might allow remote attackers to read mailboxes that have unintended weak ACLs (CVE-2010-3304). plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving the private namespace of a user, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox (CVE-2010-3706). plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving more specific entries that occur after less specific entries, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox (CVE-2010-3707). This advisory provides dovecot 1.2.15 which is not vulnerable to these issues _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3779 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3780 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3304 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3706 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3707 _______________________________________________________________________ Updated Packages: Mandriva Linux 2010.0: 1df58b06a8f532b9f3b53e3e5c38b95a 2010.0/i586/dovecot-1.2.15-0.1mdv2010.0.i586.rpm b50eb47d4798f4e180be2838612c1922 2010.0/i586/dovecot-devel-1.2.15-0.1mdv2010.0.i586.rpm bbf80f23b7a01bf614a6d3938fb9294f 2010.0/i586/dovecot-plugins-gssapi-1.2.15-0.1mdv2010.0.i586.rpm d292ce098defe8ee5ac0a8b77d6433b7 2010.0/i586/dovecot-plugins-ldap-1.2.15-0.1mdv2010.0.i586.rpm 07b65d7e5015fe1d1d49e2bb51b8f10f 2010.0/i586/dovecot-plugins-managesieve-1.2.15-0.1mdv2010.0.i586.rpm 018407c89d2adcbd1e4cc4d8b548c03f 2010.0/i586/dovecot-plugins-mysql-1.2.15-0.1mdv2010.0.i586.rpm 5acb1e87956a7227197b35276de8234e 2010.0/i586/dovecot-plugins-pgsql-1.2.15-0.1mdv2010.0.i586.rpm 2af2c1a5c942176dca6679b0d35cfc97 2010.0/i586/dovecot-plugins-sieve-1.2.15-0.1mdv2010.0.i586.rpm 3311b70cb438d6870175649f1e788d57 2010.0/i586/dovecot-plugins-sqlite-1.2.15-0.1mdv2010.0.i586.rpm 7cdeb278f84d3b76dda11c3c553a393e 2010.0/SRPMS/dovecot-1.2.15-0.1mdv2010.0.src.rpm Mandriva Linux 2010.0/X86_64: 3c2a94c6963b9729f26bae309f316be1 2010.0/x86_64/dovecot-1.2.15-0.1mdv2010.0.x86_64.rpm f27bd0aa4321a50f81438ceb28e7afdf 2010.0/x86_64/dovecot-devel-1.2.15-0.1mdv2010.0.x86_64.rpm f16efcfc0623def5190c36225d6b4fb0 2010.0/x86_64/dovecot-plugins-gssapi-1.2.15-0.1mdv2010.0.x86_64.rpm dbd0b2d9d5e3345ea356914ae3039dca 2010.0/x86_64/dovecot-plugins-ldap-1.2.15-0.1mdv2010.0.x86_64.rpm f5f7028181fa5da66aac7afe38867a0f 2010.0/x86_64/dovecot-plugins-managesieve-1.2.15-0.1mdv2010.0.x86_64.rpm 86483fa99bc562b0f60c5c040c682a7a 2010.0/x86_64/dovecot-plugins-mysql-1.2.15-0.1mdv2010.0.x86_64.rpm 6f0a630ba4b0a0e6597adda930042eff 2010.0/x86_64/dovecot-plugins-pgsql-1.2.15-0.1mdv2010.0.x86_64.rpm 3296ba8b59f6efa87b1ba4e22519d993 2010.0/x86_64/dovecot-plugins-sieve-1.2.15-0.1mdv2010.0.x86_64.rpm e680d9ee9ada976e9c6ea879292cab33 2010.0/x86_64/dovecot-plugins-sqlite-1.2.15-0.1mdv2010.0.x86_64.rpm 7cdeb278f84d3b76dda11c3c553a393e 2010.0/SRPMS/dovecot-1.2.15-0.1mdv2010.0.src.rpm Mandriva Linux 2010.1: 2731f51745c762cfab4d66cba6309175 2010.1/i586/dovecot-1.2.15-0.1mdv2010.1.i586.rpm 2287de86adbae6f0dba5554a44cadc5f 2010.1/i586/dovecot-devel-1.2.15-0.1mdv2010.1.i586.rpm 277acece0cf80d1b3be2621ad8282fd2 2010.1/i586/dovecot-plugins-gssapi-1.2.15-0.1mdv2010.1.i586.rpm 77e7aac7a9dbb78e407f18fff0e2a9c3 2010.1/i586/dovecot-plugins-ldap-1.2.15-0.1mdv2010.1.i586.rpm 4e4bbcc9da33d320765bea61031a75c7 2010.1/i586/dovecot-plugins-managesieve-1.2.15-0.1mdv2010.1.i586.rpm 5b32c80bae3715924e16b2d67ee61894 2010.1/i586/dovecot-plugins-mysql-1.2.15-0.1mdv2010.1.i586.rpm 3a0adc6c306eed6515b867cb34222160 2010.1/i586/dovecot-plugins-pgsql-1.2.15-0.1mdv2010.1.i586.rpm 2cc4f8af517d94d0d5bf5cd308ee8a31 2010.1/i586/dovecot-plugins-sieve-1.2.15-0.1mdv2010.1.i586.rpm c16a48894cdd7531708f56d8aafa0df4 2010.1/i586/dovecot-plugins-sqlite-1.2.15-0.1mdv2010.1.i586.rpm 8cc9f2f095a8d7e3b464d7049b74cf52 2010.1/SRPMS/dovecot-1.2.15-0.1mdv2010.1.src.rpm Mandriva Linux 2010.1/X86_64: 071057272f0405a630de36f6a1d2eb96 2010.1/x86_64/dovecot-1.2.15-0.1mdv2010.1.x86_64.rpm 2af648cf2d0352b1b912da8a09f917f4 2010.1/x86_64/dovecot-devel-1.2.15-0.1mdv2010.1.x86_64.rpm 644228dfccad5a1448a487eb7fe1d106 2010.1/x86_64/dovecot-plugins-gssapi-1.2.15-0.1mdv2010.1.x86_64.rpm 48f8b58f5d5980b8936d16ef818f4a88 2010.1/x86_64/dovecot-plugins-ldap-1.2.15-0.1mdv2010.1.x86_64.rpm c67c94f4d89053ad2c7fe688c57b2524 2010.1/x86_64/dovecot-plugins-managesieve-1.2.15-0.1mdv2010.1.x86_64.rpm b5c7e8430ddc4cd718669657597f1c7c 2010.1/x86_64/dovecot-plugins-mysql-1.2.15-0.1mdv2010.1.x86_64.rpm 70365efc4c102315abdfb25d24ef4f51 2010.1/x86_64/dovecot-plugins-pgsql-1.2.15-0.1mdv2010.1.x86_64.rpm b63db34635907c36466c97ace31c1ec7 2010.1/x86_64/dovecot-plugins-sieve-1.2.15-0.1mdv2010.1.x86_64.rpm a208a34c7448bb439603bb6ee2e56eec 2010.1/x86_64/dovecot-plugins-sqlite-1.2.15-0.1mdv2010.1.x86_64.rpm 8cc9f2f095a8d7e3b464d7049b74cf52 2010.1/SRPMS/dovecot-1.2.15-0.1mdv2010.1.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/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 v1.4.9 (GNU/Linux) iD8DBQFMzCF3mqjQ0CJFipgRAuERAJ9xuqu9TdMIMsvem+1A1/ljZHkw5ACggX32 1Au0YeDEpCfC8B+FCBipws8= =zUwy -----END PGP SIGNATURE-----