Medium severity · published Jan 27, 2016
CVE-2016-2047
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…
5.9
CVSS
3.7%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MY
MySQL · Oracle
5.5.0 through 5.5.48; 5.6.0 through 5.6.29; 5.7.0 through 5.7.11 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EL
Enterprise Linux · Redhat
6.0; 7.0 · source: NVD
LE
Leap · Opensuse
42.1 · source: NVD
LI
Linux · Oracle
7 · source: NVD
MA
Mariadb · Mariadb
5.5.20 before 5.5.47; 10.0.0 before 10.0.23; 10.1.0 before 10.1.10 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2047
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2047
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00035.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00053.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00033.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00034.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00051.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00053.html
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