KLA10749
Multiple vulnerabilities in MariaDB

Multiple serious vulnerabilities have been found in MariaDB. Malicious users can exploit these vulnerabilities to cause denial of service, affect integrity, bypass security restrictions or execute arbitrary code.

Below is a complete list of vulnerabilities

1. Improper server hostname verification can be exploited remotely via specially designed certificate to bypass security restrictions;
2. Multiple unknown vulnerabilities can be exploited remotely to affect integrity, availability and confidentiality.

Technical details

Vulnerability (1) caused by sl_verify_server_cert function in sql-common/client.c which does not properly verify server hostname and domain name match in subject’s Common Name (CN) or subjectAltName field of the X.509 certificate. This vulnerability can be exploited via “/CN=” string in a field in a certificate.

MariaDB versions earlier than 5.5.47
MariaDB 10.0 versions earlier than 10.0.23
MariaDB 10.1 versions earlier than 10.1.10

Update to the latest version
MariaDB download page