MariaDB server is a community developed fork of MySQL server. From 12.3.1 until 12.3.3 and 13.0.2, SYS_REFCURSOR handling is affected because cursor-array reallocation can leave stale references in routine contexts. A low-privileged attacker can open a large number of SYS_REFCURSORs and then fetch one to trigger a use-after-free that can enable remote code execution when combined with another vulnerability.
This issue is fixed in versions 12.3.3 and 13.0.2.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 2
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Mariadb Mariadb
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
|
12.3.1
|
12.3.3
|
|
Mariadb Mariadb
cpe:2.3:a:mariadb:mariadb:13.0.1:*:*:*:*:*:*:*
|
— | — |
References 7
https://github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592…
security-advisories@github.com
https://github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514…
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
security-advisories@github.com
https://github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm
security-advisories@github.com
https://jira.mariadb.org/browse/MDEV-40396
security-advisories@github.com
https://jira.mariadb.org/browse/MDEV-40639
security-advisories@github.com