What’s Vulnerable › Vulnerabilities

CVE-2009-4030

• Severity: medium (CVSS 4.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-11-30 · updated 2026-06-16
• Weakness: CWE-59

Description

MySQL 5.1.x before 5.1.41 allows local users to bypass certain privilege checks by calling CREATE TABLE on a MyISAM table with modified (1) DATA DIRECTORY or (2) INDEX DIRECTORY arguments that are originally associated with pathnames without symlinks, and that can point to tables created at a future time at which a pathname is modified to contain a symlink to a subdirectory of the MySQL data home directory, related to incorrect calculation of the mysql_unpacked_real_data_home value. NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4098 and CVE-2008-2079.

Affected products

• Mysql: 5.1.5, 5.1.23, 5.1.32
• MySQL Server: 5.1, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.6 (+17)

References

• http://bugs.mysql.com/bug.php?id=32167
• http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html
• http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
• http://lists.mysql.com/commits/89940
• http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00005.html
• http://marc.info/?l=oss-security&m=125908040022018&w=2
• http://marc.info/?l=oss-security&m=125908080222685&w=2
• http://secunia.com/advisories/38517
• http://secunia.com/advisories/38573
• http://support.apple.com/kb/HT4077
• http://ubuntu.com/usn/usn-897-1

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