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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…
Medium6.8EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (12)
- oval:org.mitre.oval:def:8510 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- RHSA-2010:0109 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- ADV-2010-1107 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- SUSE-SR:2010:011 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20091119 mysql-5.1.41 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [commits] 20091020 bzr commit into mysql-4.1 branch (joro:2709) Bug#47320 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://dev.mysql.com/doc/refman/5.0/en/news-5-0-88.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091121 CVE Request - MySQL - 5.0.88 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- oval:org.mitre.oval:def:10940 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://bugs.mysql.com/47320 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20091123 Re: mysql-5.1.41 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-4028)Record last updated .