CVE-2009-4028
MEDIUM severity · CVSS 6.8 · Improper input validation
6.8CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)2%
AV:N/AC:M/Au:N/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://bugs.mysql.com/47320
- http://dev.mysql.com/doc/refman/5.0/en/news-5-0-88.html
- http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
- http://marc.info/?l=oss-security&m=125881733826437&w=2
- http://www.openwall.com/lists/oss-security/2009/11/19/3
- http://www.openwall.com/lists/oss-security/2009/11/23/16
- http://lists.mysql.com/commits/87446Exploit