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.

Original advisories

MariaDB bug bulletin.

Related products

MariaDB

CVE list

CVE-2016-0609 warning

CVE-2016-0616 warning

CVE-2016-0606 warning

CVE-2016-0608 warning

CVE-2016-0546 high

CVE-2016-0596 warning

CVE-2016-0600 warning

CVE-2016-0597 warning

CVE-2016-0598 warning

CVE-2016-0505 high

CVE-2016-2047 warning

Solution

Update to the latest version

MariaDB download page

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• LoI

Loss of integrity. Exploitation of vulnerabilities with this impact can lead to partial system fault or system components connection disruption.

Affected Products

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