CVE-2009-4012: Linux.thai Libthai

High severity, CVSS 10.0. EPSS: 4.5% chance of exploitation in the next 30 days.

Multiple integer overflows in LibThai before 0.1.13 might allow context-dependent attackers to execute arbitrary code via long strings that trigger heap-based buffer overflows, related to (1) thbrk/thbrk.c and (2) thwbrk/thwbrk.c. NOTE: some of these details are obtained from third party information.

Affected products

• Linux.thai Libthai: up to and including 0.1.12; version 0.1.0 only; version 0.1.1 only; version 0.1.2 only; version 0.1.3 only; version 0.1.4 only; …

Published 2010-01-19. Last modified 2026-06-16.