CVE catalog
CVE-2016-2047
UBUNTU-CVE-2016-2047
- Severity
- Medium · CVSS 5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 3.74% · Oct 25, 2026
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."
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.32-1ubuntu1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.35-1ubuntu1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.36-1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.37-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.39-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.40-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.41-0ubuntu0.14.04.2 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.41-1ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.43-1ubuntu0.14.04.2 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.44-1ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.46-1ubuntu0.14.04.2 | vulnerable |
| Ubuntu | mariadb-5.5 | 14.04 | 5.5.47-1ubuntu0.14.04.1 | fixed |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.32-0ubuntu7 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.34-0ubuntu1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.34-0ubuntu2 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.35-0ubuntu1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.35+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.37-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.38-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.40-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.41-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.43-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.44-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.46-0ubuntu0.14.04.2 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.47-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.5 | 14.04 | 5.5.49-0ubuntu0.14.04.1 | fixed |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.15-0ubuntu1 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.15-1~exp2 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.16-1~exp1 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.17-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.19-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.27-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.28-0ubuntu0.14.04.1 | vulnerable |
| Ubuntu | mysql-5.6 | 14.04 | 5.6.30-0ubuntu0.14.04.1 | fixed |
| Ubuntu | mysql-5.7 | 16.04 | 5.7.11-0ubuntu4 | vulnerable |
| Ubuntu | mysql-5.7 | 16.04 | 5.7.11-0ubuntu5 | vulnerable |
| Ubuntu | mysql-5.7 | 16.04 | 5.7.11-0ubuntu6 | vulnerable |
| Ubuntu | mysql-5.7 | 16.04 | 5.7.12-0ubuntu1 | fixed |
| Ubuntu | percona-xtradb-cluster-5.6 | 16.04 | 5.6.21-25.8-0ubuntu2 | vulnerable |
| Ubuntu | percona-xtradb-cluster-5.6 | 16.04 | 5.6.21-25.8-0ubuntu3 | vulnerable |
| Ubuntu | percona-xtradb-cluster-5.6 | 16.04 | 5.6.21-25.8-0ubuntu3.1 | vulnerable |
| Ubuntu | percona-xtradb-cluster-5.6 | 16.04 | 5.6.21-25.8-0ubuntu3.2 | vulnerable |
| Ubuntu | percona-xtradb-cluster-5.6 | 16.04 | 5.6.34-26.19-0ubuntu0.16.04.1 | fixed |
| Ubuntu | percona-server-5.6 | 16.04 | 5.6.22-rel71.0-0ubuntu2 | vulnerable |
| Ubuntu | percona-server-5.6 | 16.04 | 5.6.22-rel71.0-0ubuntu4 | vulnerable |
| Ubuntu | percona-server-5.6 | 16.04 | 5.6.22-rel71.0-0ubuntu4.1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Ubuntu | mariadb-5.5 | deb | 14.04 | 5.5.47-1ubuntu0.14.04.1 | Not reported | UBUNTU-CVE-2016-2047 | Not reported |
| Ubuntu | mysql-5.5 | deb | 14.04 | 5.5.49-0ubuntu0.14.04.1 | Not reported | UBUNTU-CVE-2016-2047 | Not reported |
| Ubuntu | mysql-5.6 | deb | 14.04 | 5.6.30-0ubuntu0.14.04.1 | Not reported | UBUNTU-CVE-2016-2047 | Not reported |
| Ubuntu | mysql-5.7 | deb | 16.04 | 5.7.12-0ubuntu1 | Not reported | UBUNTU-CVE-2016-2047 | Not reported |
| Ubuntu | percona-xtradb-cluster-5.6 | deb | 16.04 | 5.6.34-26.19-0ubuntu0.16.04.1 | Not reported | UBUNTU-CVE-2016-2047 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2016_0534.json]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-2047]
- [https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-2047.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]