Potential security issue in lib/sha256.c: Unchecked return from initialization function #5414
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What is a Conditionally Uninitialized Variable? The return value of a function that is potentially used to initialize a local variable is not checked. Therefore, reading the local variable may result in undefined behavior.
1 instance of this defect were found in the following locations:
Instance 1
File :
lib/sha256.cFunction:
CryptGetHashParamcurl/lib/sha256.c
Line 228 in 17b1405
Code extract:
{ unsigned long length; CryptGetHashParam(ctx->hHash, HP_HASHVAL, NULL, &length, 0); <------ HERE if(length == SHA256_DIGEST_LENGTH) CryptGetHashParam(ctx->hHash, HP_HASHVAL, digest, &length, 0);