CVE-2016-2047 Information

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.\

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00035.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00053.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00033.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00051.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00053.html http://rhn.redhat.com/errata/RHSA-2016-0534.html http://rhn.redhat.com/errata/RHSA-2016-0705.html http://rhn.redhat.com/errata/RHSA-2016-1480.html http://rhn.redhat.com/errata/RHSA-2016-1481.html http://www.debian.org/security/2016/dsa-3453 http://www.debian.org/security/2016/dsa-3557 http://www.openwall.com/lists/oss-security/2016/01/26/3 http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.securityfocus.com/bid/81810 http://www.securitytracker.com/id/1035606 http://www.ubuntu.com/usn/USN-2953-1 http://www.ubuntu.com/usn/USN-2954-1 https://access.redhat.com/errata/RHSA-2016:1132 https://mariadb.atlassian.net/browse/MDEV-9212 https://mariadb.com/kb/en/mariadb/mariadb-10110-release-notes/ https://mariadb.com/kb/en/mariadb/mariadb-5547-release-notes/ https://mariadb.com/kb/en/mdb-10023-rn/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9