| Name | CVE-2016-2047 |
| 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." |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-447-1, DSA-3453-1, DSA-3557-1 |
| NVD severity | medium (attack range: remote) |
| Debian Bugs | 821094, 821100 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| mariadb-10.0 (PTS) | jessie | 10.0.30-0+deb8u2 | fixed |
| jessie (security) | 10.0.32-0+deb8u1 | fixed | |
| mysql-5.5 (PTS) | wheezy | 5.5.47-0+deb7u1 | vulnerable |
| wheezy (security) | 5.5.58-0+deb7u1 | fixed | |
| jessie | 5.5.55-0+deb8u1 | fixed | |
| jessie (security) | 5.5.58-0+deb8u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| mariadb-10.0 | source | (unstable) | 10.0.23-1 | medium | ||
| mariadb-10.0 | source | jessie | 10.0.23-0+deb8u1 | medium | DSA-3453-1 | |
| mysql-5.5 | source | (unstable) | (unfixed) | medium | 821100 | |
| mysql-5.5 | source | jessie | 5.5.49-0+deb8u1 | medium | DSA-3557-1 | |
| mysql-5.5 | source | wheezy | 5.5.49-0+deb7u1 | medium | DLA-447-1 | |
| mysql-5.6 | source | (unstable) | 5.6.30-1 | medium | 821094 |
https://mariadb.atlassian.net/browse/MDEV-9212
https://github.com/MariaDB/server/commit/f0d774d48416bb06063184380b684380ca005a41
[squeeze] - mysql-5.5 <no-dsa> (will be fixed along with an upcoming Oracle CPU)
http://www.oracle.com/technetwork/topics/security/cpuapr2016-2881694.html