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.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[commits] 20091020 bzr commit into mysql-4.1 branch (joro:2709) Bug#47320
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