The cyrus-imapd packages contain a high-performance mail server with IMAP,
POP3, NNTP, and Sieve support.
It was discovered that cyrus-imapd did not flush the received commands
buffer after switching to TLS encryption for IMAP, LMTP, NNTP, and POP3
sessions. A man-in-the-middle attacker could use this flaw to inject
protocol commands into a victim’s TLS session initialization messages. This
could lead to those commands being processed by cyrus-imapd, potentially
allowing the attacker to steal the victim’s mail or authentication
credentials. (CVE-2011-1926)
Users of cyrus-imapd are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. After installing
the update, cyrus-imapd will be restarted automatically.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 4 | s390 | cyrus-imapd-utils | < 2.2.12-15.el4 | cyrus-imapd-utils-2.2.12-15.el4.s390.rpm |
RedHat | 4 | x86_64 | cyrus-imapd | < 2.2.12-15.el4 | cyrus-imapd-2.2.12-15.el4.x86_64.rpm |
RedHat | 6 | i686 | cyrus-imapd-devel | < 2.3.16-6.el6_1.2 | cyrus-imapd-devel-2.3.16-6.el6_1.2.i686.rpm |
RedHat | 4 | s390x | cyrus-imapd-utils | < 2.2.12-15.el4 | cyrus-imapd-utils-2.2.12-15.el4.s390x.rpm |
RedHat | 6 | ppc | cyrus-imapd-devel | < 2.3.16-6.el6_1.2 | cyrus-imapd-devel-2.3.16-6.el6_1.2.ppc.rpm |
RedHat | 5 | i386 | cyrus-imapd-devel | < 2.3.7-7.el5_6.4 | cyrus-imapd-devel-2.3.7-7.el5_6.4.i386.rpm |
RedHat | 4 | ia64 | cyrus-imapd-utils | < 2.2.12-15.el4 | cyrus-imapd-utils-2.2.12-15.el4.ia64.rpm |
RedHat | 5 | ia64 | cyrus-imapd-perl | < 2.3.7-7.el5_6.4 | cyrus-imapd-perl-2.3.7-7.el5_6.4.ia64.rpm |
RedHat | 6 | i686 | cyrus-imapd | < 2.3.16-6.el6_1.2 | cyrus-imapd-2.3.16-6.el6_1.2.i686.rpm |
RedHat | 4 | ia64 | cyrus-imapd-murder | < 2.2.12-15.el4 | cyrus-imapd-murder-2.2.12-15.el4.ia64.rpm |