Buffer overflow in Westes Flex

CVE-2006-0459

flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rules, which causes flex to generate code that contains a buffer overflow that might allow context-dependent attackers to execute arbitrary code.

Vulnerability class: Buffer Overflow

EPSS: 0.048 (91.0th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References