CVE-2009-4028

The vio_verify_callback function in viosslfactories.c in MySQL 5.0.x before 5.0.88 and 5.1.x before 5.1.41, when OpenSSL is used, accepts a value of zero for the depth of X.509 certificates, which allows man-in-the-middle attackers to spoof arbitrary SSL-based MySQL servers via a crafted certificate, as demonstrated by a certificate presented by a server linked against the yaSSL library.

Date published : 2009-11-30

http://bugs.mysql.com/47320

http://dev.mysql.com/doc/refman/5.0/en/news-5-0-88.html