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>> Berkeley Yacc Rule Reduction Denial of Service Vulnerability
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Title : Berkeley Yacc Rule Reduction Denial of Service Vulnerability
VUPEN ID : VUPEN/ADV-2008-2151
CVE ID : CVE-2008-3196
CWE ID : CWE-399
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-07-22
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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.
Affected Products
Berkeley Yacc (byacc)
Solution
VUPEN Security is not aware of any vendor-supplied patch.
References
http://www.vupen.com/english/advisories/2008/2151
http://marc.info/?l=openbsd-cvs&m=121553004431393&w=2
Credits
Vulnerabilities reported by Otto Moerbeek.
ChangeLog
2008-07-22 : Initial release
Vulnerability Management
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