CVE-2019-6293

An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service.

An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service.

Se ha descubierto un problema en la función mark_beginning_as_normal en nfa.c en la versión 2.6.4 de flex. Hay un problema de agotamiento de pila causado por la función mark_beginning_as_normal, haciendo llamadas recursivas a sí misma en ciertos casos que implican el uso frecuente de caracteres '*'. Atacantes remotos pueden explotar esta vulnerabilidad para provocar una denegación de servicio.