Description
Vulnerability in the MySQL Connectors component of Oracle MySQL (subcomponent: Connector/C). Supported versions that are affected are 6.1.10 and earlier. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. Note: The documentation has also been updated for the correct way to use mysql_stmt_close(). Please see: https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-execute.html, https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-fetch.html, https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-close.html, https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-error.html, https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-errno.html, and https://dev.mysql.com/doc/refman/5.7/en/mysql-stmt-sqlstate.html. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Oracle | MySQL Server | 5.5.56 and earlier, 5.6.36 and earlier, 5.7.18 and earlier | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | mysql-5.5 | 5.5.57-0+deb8u1 | DSA-3922-1 |
| Debian 7 | mysql-5.5 | 5.5.57-0+deb7u1 | DLA-1043-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mysql-5.7 | 5.7.19-0ubuntu1 | — |
| Ubuntu 16.04 LTS | mysql-5.7 | 5.7.19-0ubuntu0.16.04.1 | USN-3357-1 |
| Ubuntu 16.04 LTS | percona-server-5.6 +1 | No fix yet | — |
| Ubuntu 14.04 LTS | mysql-5.5 | 5.5.57-0ubuntu0.14.04.1 | USN-3357-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | mysql | 5.5.57-0.39.3.1 | SUSE-SU-2017:2290-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | mysql | 5.5.57-0.39.3.1 | SUSE-SU-2017:2290-1 |
Advisories 4
- USN-3357-1 mysql-5.5, mysql-5.7 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-3922-1 mysql-5.5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1043-1 mysql-5.5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:2290-1 Security update for mysql SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 99730 vdb-entry
- 1038928 vdb-entry
- DSA-3922 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html