CVE-2016-2047

mysql: ssl-validate-cert incorrect hostname check

Published Jan 27, 2016 CVSS 3.0 · 5.9 Medium EPSS 3.7% KEV · Not listed
Description
The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47, 10.0.x before 10.0.23, and 10.1.x before 10.1.10; Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier; and Percona Server do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "/CN=" string in a field in a certificate, as demonstrated by "/OU=/CN=bar.com/CN=foo.com."

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-447-1 mysql-5.5 security update
Debian DSA Debian DSA DSA-3453-1 mariadb-10.0 security update
Debian DSA Debian DSA DSA-3557-1 mysql-5.5 security update
EUVD EUVD EUVD-2016-3153 The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47, 10.0.x before 10.0.23, and 10.1.x before 10.1.10; Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier; and Percona Server do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "/CN=" string in a field in a certificate, as demonstrated by "/OU=/CN=bar.com/CN=foo.com."
Ubuntu USN Ubuntu USN USN-2953-1 MySQL vulnerabilities
Ubuntu USN Ubuntu USN USN-2954-1 MySQL vulnerabilities
History

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