CVSS 3.1
5.9 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2015-3152
Oracle MySQL before 5.7.3, Oracle MySQL Connector/C (aka libmysqlclient) before 6.1.3, and MariaDB before 5.5.44 use the --ssl option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, aka a "BACKRONYM" attack.
Severity
- EPSS
- 7.1% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
- CWE
- CWE-295
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- fedoraproject:fedora
- mariadb:mariadb
- oracle:mysql
- oracle:mysql_connector\/c
- php:php
- redhat:enterprise_linux_desktop
- redhat:enterprise_linux_eus
- redhat:enterprise_linux_server
- redhat:enterprise_linux_server_aus
- redhat:enterprise_linux_server_tus
- redhat:enterprise_linux_workstation
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161436.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161625.html
- http://mysqlblog.fivefarmers.com/2014/04/02/redefining-ssl-option/
- http://mysqlblog.fivefarmers.com/2015/04/29/ssltls-in-5-6-and-5-5-ocert-advisory/
- http://packetstormsecurity.com/files/131688/MySQL-SSL-TLS-Downgrade.html