CVE-2011-1431 Information

Description

The STARTTLS implementation in qmail-smtpd.c in qmail-smtpd in the netqmail-1.06-tls patch for netqmail 1.06 does not properly restrict I/O buffering which allows man-in-the-middle attackers to insert commands into encrypted SMTP 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://inoa.net/qmail-tls/vu555316.patch http://securityreason.com/securityalert/8144 http://www.kb.cert.org/vuls/id/555316 http://www.kb.cert.org/vuls/id/MAPG-8D9M5Q http://www.postfix.org/CVE-2011-0411.html http://www.securityfocus.com/archive/1/516901 http://www.securityfocus.com/bid/46767 http://www.vupen.com/english/advisories/2011/0612 https://exchange.xforce.ibmcloud.com/vulnerabilities/65932