CVE-2009-4484
HIGH severity · CVSS 7.5 · Out-of-bounds write
7.5CVSS HIGH
Summary
Multiple stack-based buffer overflows in the CertDecoder::GetName function in src/asn.cpp in TaoCrypt in yaSSL before 1.9.9, as used in mysqld in MySQL 5.0.x before 5.0.90, MySQL 5.1.x before 5.1.43, MySQL 5.5.x through 5.5.0-m2, and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption and daemon crash) by establishing an SSL connection and sending an X.509 client certificate with a crafted name field, as demonstrated by mysql_overflow1.py and the vd_mysql5 module in VulnDisco Pack Professional 8.11. NOTE: this was originally reported for MySQL 5.0.51a.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)76%
AV:N/AC:L/Au:N/C:P/I:P/A:P
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://bugs.mysql.com/bug.php?id=50227Advisory
- http://archives.neohapsis.com/archives/dailydave/2010-q1/0002.html
- http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.0/revision/2837.1.1
- http://dev.mysql.com/doc/refman/5.0/en/news-5-0-90.html
- http://dev.mysql.com/doc/refman/5.1/en/news-5-1-43.html
- http://intevydis.blogspot.com/2010/01/mysq-yassl-stack-overflow.html
- http://intevydis.com/mysql_demo.html
- http://intevydis.com/mysql_overflow1.py.txt