CVE-2008-3196: skeleton.c in yacc does not properly handle reduction of a rule with an empty right hand side, which allows...

Security readout for executives and security teams

CVE-2008-3196 is a memory-safety flaw in yacc's skeleton.c handling of grammar rules with empty right sides. The supplied record does not name affected vendors or versions, so business urgency depends on whether your environment uses the affected yacc implementation or derived packages. Exposure is most likely in systems, build environments, or source trees using the affected yacc code. The supplied affected metadata is n/a, so asset teams must verify package provenance and vendor advisories before assuming impact. Treat this as a verification task, not an emergency, unless yacc is exposed to untrusted grammar input or vendor advisories confirm affected deployed versions. Missing severity and affected-product data reduce confidence in broad risk decisions. Mitigation focus: Identify deployed yacc packages and any source trees derived from referenced code.; Review vendor advisories for the deployed yacc implementation and apply any referenced update.; Prioritize build systems or parsing workflows that process untrusted grammar files..

Prepared

Jun 28, 2026, 18:52 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.