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check stored digest length before comparing authenticode digests - #2234
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plusvic merged 1 commit intoJul 28, 2026
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Jul 28, 2026
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the digest carried in a signature can be shorter than the digest algorithm's output size, so the memcmp in parse_authenticode and pkcs9_countersig_new reads past the stored digest; compare the lengths first, the way countersignature.c already does at its other three digest compares.