What’s Vulnerable › Vulnerabilities

CVE-2020-7221

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-02-04 · updated 2026-06-17
• Weakness: CWE-59

Description

mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attack on a chmod 04755 of auth_pam_tool_dir/auth_pam_tool. NOTE: this does not affect the Oracle MySQL product, which implements mysql_install_db differently.

Affected products

• MariaDB: from 10.4.7 through 10.4.11

References

• https://bugzilla.suse.com/show_bug.cgi?id=1160868
• https://github.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618
• https://seclists.org/oss-sec/2020/q1/55
• https://bugzilla.suse.com/show_bug.cgi?id=1160868
• https://github.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618
• https://seclists.org/oss-sec/2020/q1/55

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