CVE-2020-13249

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-05-20 · updated 2026-06-17

Description

libmariadb/mariadb_lib.c in MariaDB Connector/C before 3.1.8 does not properly validate the content of an OK packet received from a server. NOTE: although mariadb_lib.c was originally based on code shipped for MySQL, this issue does not affect any MySQL components supported by Oracle.

Affected products

Fedoraproject Fedora: 31, 32
MariaDB Connector/C: before 3.1.8 — fixed in 3.1.8
openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: MariaDB Connector/C 3.1.8. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00054.html
https://github.com/mariadb-corporation/mariadb-connector-c/commit/2759b87d72926b7c9b5426437a7c8dd15ff57945
https://github.com/mariadb-corporation/mariadb-connector-c/compare/v3.1.7...v3.1.8
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UW2ED32VEUHXFN2J3YQE27JIBV4SC2PI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X4X2BMF3EILMTXGOZDTPYS3KT5VWLA2P/
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00054.html
https://github.com/mariadb-corporation/mariadb-connector-c/commit/2759b87d72926b7c9b5426437a7c8dd15ff57945
https://github.com/mariadb-corporation/mariadb-connector-c/compare/v3.1.7...v3.1.8
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UW2ED32VEUHXFN2J3YQE27JIBV4SC2PI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X4X2BMF3EILMTXGOZDTPYS3KT5VWLA2P/

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