CVE-2012-5612: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 20.8% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Oracle MySQL 5.5.19 and other versions through 5.5.28, and MariaDB 5.5.28a and possibly other versions, allows remote authenticated users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code, as demonstrated using certain variations of the (1) USE, (2) SHOW TABLES, (3) DESCRIBE, (4) SHOW FIELDS FROM, (5) SHOW COLUMNS FROM, (6) SHOW INDEX FROM, (7) CREATE TABLE, (8) DROP TABLE, (9) ALTER TABLE, (10) DELETE FROM, (11) UPDATE, and (12) SET PASSWORD commands.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 11.10 only; version 12.04 only; version 12.10 only
• MariaDB MariaDB: from 5.1.0, before 5.1.67 (fixed in 5.1.67); from 5.2.0, before 5.2.14 (fixed in 5.2.14); from 5.3.0, before 5.3.12 (fixed in 5.3.12); from 5.5.0, before 5.5.29 (fixed in 5.5.29); version 10.0.0 only
• Oracle MySQL: from 5.5.0, up to and including 5.5.28
• Suse Linux Enterprise Desktop: version 11 only
• Suse Linux Enterprise Server: version 11 only
• Suse Linux Enterprise Software Development Kit: version 11 only

Published 2012-12-03. Last modified 2026-06-16.