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dtls13: Dtls13ParseUnifiedRecordLayer: add overflow check

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Marco Oliverio
2022-09-20 09:30:30 +02:00
parent 804081e7c2
commit 400d3c6963
1 changed files with 2 additions and 0 deletions
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src/dtls13.c
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@@ -1362,6 +1362,8 @@ int Dtls13ParseUnifiedRecordLayer(WOLFSSL* ssl, const byte* input,
to create record number xor mask). (draft 43 - Sec 4.2.3) */ to create record number xor mask). (draft 43 - Sec 4.2.3) */
if (hdrInfo->recordLength < DTLS13_RN_MASK_SIZE) if (hdrInfo->recordLength < DTLS13_RN_MASK_SIZE)
return LENGTH_ERROR; return LENGTH_ERROR;
if (inputSize < idx + DTLS13_RN_MASK_SIZE)
return BUFFER_ERROR;
ret = Dtls13EncryptDecryptRecordNumber(ssl, seqNum, seqLen, input + idx, ret = Dtls13EncryptDecryptRecordNumber(ssl, seqNum, seqLen, input + idx,
DEPROTECT); DEPROTECT);