A vulnerability has been identified in Berkeley Yacc, which could be exploited by attackers to cause a denial of service. This issue is caused by an error in the "skeleton.c" file that does not properly handle reduction of a rule with an empty right hand side, which could allow attackers to cause an out-of-bounds stack access when the yacc stack pointer points to the end of the stack.
Credits
Vulnerabilities reported by Otto Moerbeek.
ChangeLog
2008-07-22 : Initial release
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