CVE-2010-3707 Information

Description

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.

Reference

http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html http://marc.info/?l=oss-security&m=128620520732377&w=2 http://marc.info/?l=oss-security&m=128622064325688&w=2 http://secunia.com/advisories/43220 http://www.dovecot.org/list/dovecot/2010-October/053450.html http://www.dovecot.org/list/dovecot/2010-October/053451.html http://www.dovecot.org/list/dovecot/2010-October/053452.html http://www.mandriva.com/security/advisories?name=MDVSA-2010:217 http://www.redhat.com/support/errata/RHSA-2011-0600.html http://www.ubuntu.com/usn/USN-1059-1 http://www.vupen.com/english/advisories/2010/2572 http://www.vupen.com/english/advisories/2010/2840 http://www.vupen.com/english/advisories/2011/0301