Vulnerability in Mariadb
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 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."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.037 (89.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Mariadb
- Oracle Linux — versions 7
- Oracle MySQL
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 8.0, 9.0
- openSUSE Leap — versions 42.1
- Red Hat Enterprise Linux — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00034.html (vendor-advisory, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-1481.html (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2016:1132 (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-0534.html (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1035606 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2016/01/26/3 (mailing-list, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2953-1 (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00053.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2954-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2047?
- CVE-2016-2047 is a medium-severity vulnerability in Mariadb, classified under CWE-254. CVSS score: 5.9/10. Published 2016-01-27.
- How severe is CVE-2016-2047?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2016-2047 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.