CVE-2016-2047

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Summary

CVECVE-2016-2047
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-01-27 20:59:05 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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."

Risk And Classification

Primary CVSS: v3.0 5.9 MEDIUM from [email protected]

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

Problem Types: CWE-254 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.9MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:M/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mariadb Mariadb All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
Debian -- Security Information -- DSA-3557-1 mysql-5.5 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
Debian -- Security Information -- DSA-3453-1 mariadb-10.0 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
MariaDB 10.0.23 Release Notes - MariaDB Knowledge Base af854a3a-2127-422b-91ae-364da2661108 mariadb.com Vendor Advisory
[security-announce] openSUSE-SU-2016:1332-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:1619-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[MDEV-9212] ssl-validate-cert incorrect hostname check - JIRA af854a3a-2127-422b-91ae-364da2661108 mariadb.atlassian.net Vendor Advisory
[security-announce] SUSE-SU-2016:1279-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
USN-2954-1: MySQL vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
oss-security - Flaw in mariadb clients SSL certificate validation af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
MariaDB 10.1.10 Release Notes - MariaDB Knowledge Base af854a3a-2127-422b-91ae-364da2661108 mariadb.com Vendor Advisory
Oracle Critical Patch Update Advisory - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Vendor Advisory
MariaDB/MySQL/Percona Server CVE-2016-2047 SSL Certificate Validation Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
USN-2953-1: MySQL vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
[security-announce] SUSE-SU-2016:1620-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
[security-announce] openSUSE-SU-2016:1664-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Oracle Linux Bulletin - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
MySQL Multiple Bugs Let Remote Users Access and Modify Data and Deny Service and Let Remote and Remote Authenticated Users Gain Elevated Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
MariaDB 5.5.47 Release Notes - MariaDB Knowledge Base af854a3a-2127-422b-91ae-364da2661108 mariadb.com Vendor Advisory
[security-announce] openSUSE-SU-2016:1686-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
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