CVE-2011-1926 Information

Description

The STARTTLS implementation in Cyrus IMAP Server before 2.4.7 does not properly restrict I/O buffering which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place related to a \plaintext command injection\ attack a similar issue to CVE-2011-0411.

Reference

http://bugzilla.cyrusimap.org/show_bug.cgi?id=3423 http://bugzilla.cyrusimap.org/show_bug.cgi?id=3424 http://git.cyrusimap.org/cyrus-imapd/patch/?id=523a91a5e86c8b9a27a138f04a3e3f2d8786f162 http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061374.html http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061415.html http://openwall.com/lists/oss-security/2011/05/17/15 http://openwall.com/lists/oss-security/2011/05/17/2 http://secunia.com/advisories/44670 http://secunia.com/advisories/44876 http://secunia.com/advisories/44913 http://secunia.com/advisories/44928 http://www.cyrusimap.org/docs/cyrus-imapd/2.4.7/changes.php http://www.debian.org/security/2011/dsa-2242 http://www.debian.org/security/2011/dsa-2258 http://www.kb.cert.org/vuls/id/555316 http://www.mandriva.com/security/advisories?name=MDVSA-2011:100 http://www.redhat.com/support/errata/RHSA-2011-0859.html http://www.securitytracker.com/id?1025625 https://bugzilla.redhat.com/show_bug.cgi?id=705288 https://exchange.xforce.ibmcloud.com/vulnerabilities/67867