| Título | dvidelabs flatcc v0.6.3 Reachable Assertion |
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| Descrição | align_order_members() sorts a table's member list by a computed order key k and asserts k > 0 before inserting into the ordering list (src/compiler/semantics.c:1059). When the same member name is declared twice, the second declaration's key collapses to 0 and the assert(k > 0) aborts the compile. Duplicate members are a plausible user typo, not an exceptional input — the parser should emit a redefinition error, not crash.
Affected versions: flatcc v0.6.3
Severity: Medium (reachable assertion abort / SIGABRT; crash/DoS of the schema compiler)
CWE: CWE-617 (Reachable Assertion) |
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| Fonte | ⚠️ https://github.com/dvidelabs/flatcc/issues/387 |
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| Utilizador | lrrh (UID 100159) |
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| Submissão | 08/08/2026 10h41 (há 1 mês) |
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| Moderação | 13/09/2026 15h01 (1 month later) |
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| Estado | Aceite |
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| Entrada VulDB | 403292 [Dvidelabs flatcc até 0.6.3 Duplicate Symbol src/compiler/semantics.c align_order_members Negação de Serviço] |
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| Pontos | 20 |
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