6.9 Medium
AI Score
Confidence
Low
0.003 Low
EPSS
Percentile
68.5%
skeleton.c in yacc does not properly handle reduction of a rule with an empty right hand side, which allows context-dependent attackers to cause an out-of-bounds stack access when the yacc stack pointer points to the end of the stack.
secunia.com/advisories/31073
www.vupen.com/english/advisories/2008/2151/references
marc.info/?l=openbsd-cvs&m=121553004431393&w=2
marc.info/?l=openbsd-cvs&m=121553036432044&w=2