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ASN X509: Don't allow any more data after signature

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This commit is contained in:
Sean Parkinson
2020-12-18 10:02:38 +10:00
parent b11b08bb10
commit a4f8a21b9b
1 changed files with 4 additions and 0 deletions
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4
wolfcrypt/src/asn.c
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@@ -6722,6 +6722,7 @@ static int GetSignature(DecodedCert* cert)
{
int length;
int ret;
ret = CheckBitString(cert->source, &cert->srcIdx, &length, cert->maxIdx, 1,
NULL);
if (ret != 0)
@@ -6731,6 +6732,9 @@ static int GetSignature(DecodedCert* cert)
cert->signature = &cert->source[cert->srcIdx];
cert->srcIdx += cert->sigLength;
if (cert->srcIdx != cert->maxIdx)
return ASN_PARSE_E;
return 0;
}