CVE catalog
CVE-2020-7221
UBUNTU-CVE-2020-7221
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.67% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | mysql-5.5 | 14.04 | 5.5.32-0ubuntu7 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.34-0ubuntu1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.34-0ubuntu2 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.35-0ubuntu1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.35+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.37-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.38-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.40-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.41-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.43-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.44-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.46-0ubuntu0.14.04.2 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.47-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.49-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.50-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.52-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.53-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.54-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.55-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.57-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.58-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.59-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.60-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.61-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.62-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.20-0ubuntu0.15.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.22-0ubuntu1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.23-1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.23-2 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.24-7 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.25-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.27-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.28-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.29-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.31-0ubuntu0.16.04.2 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.33-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.34-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.36-0ubuntu0.16.04.1 | vulnerable |
| Ubuntu | mariadb-10.0 | 16.04 | 10.0.38-0ubuntu0.16.04.1 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: