CVE-2016-2047

First published: Tue Jan 26 2016(Updated: )

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."

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
redhat/mysql	<5.5.48	5.5.48
redhat/mysql	<5.6.29	5.6.29
redhat/mysql	<5.7.11	5.7.11
redhat/mariadb	<5.5.47	5.5.47
redhat/mariadb	<10.1.10	10.1.10
redhat/mariadb	<10.0.23	10.0.23
Mariadb Mariadb	>=5.5.20<5.5.47
Mariadb Mariadb	>=10.0.0<10.0.23
Mariadb Mariadb	>=10.1.0<10.1.10
Oracle Linux	=7
Oracle MySQL	>=5.5.0<=5.5.48
Oracle MySQL	>=5.6.0<=5.6.29
Oracle MySQL	>=5.7.0<=5.7.11
openSUSE Leap	=42.1
Redhat Enterprise Linux	=6.0
Redhat Enterprise Linux	=7.0
Debian Debian Linux	=8.0
Debian Debian Linux	=9.0
Canonical Ubuntu Linux	=12.04
Canonical Ubuntu Linux	=14.04
Canonical Ubuntu Linux	=15.10
Canonical Ubuntu Linux	=16.04

Remedy

http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html

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