| Título | OpenSC >= 0.12.2 up to and including 0.27.1 (latest release, unfixed; fix approved in PR #3812, pending merge) Buffer Overflow (stack, CWE-121) |
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| Descripción | In src/libopensc/card-setcos.c, setcos_construct_fci_44() copies file->type_attr, sec_attr and prop_attr into a fixed 64-byte stack buffer without length validation. Attributes longer than 64 bytes (e.g. from a malicious smart card or corrupted profile) cause a stack buffer overflow write, confirmed with AddressSanitizer via the fuzz_pkcs15init harness. All versions from 0.12.2 through 0.27.1 (latest release) are affected. The fix has been approved by the OpenSC maintainer and is pending merge (https://github.com/OpenSC/OpenSC/pull/3812).
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| Fuente | ⚠️ https://github.com/OpenSC/OpenSC/pull/3812 |
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| Usuario | zzxzzb (UID 95450) |
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| Sumisión | 2026-09-02 13:09 (hace 2 meses) |
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| Moderación | 2026-09-30 21:06 (28 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 412343 [OpenSC hasta 0.27.1 card-setcos.c setcos_construct_fci_44 type_attr desbordamiento de búfer] |
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| Puntos | 20 |
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