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protect against AES-CCM copy to smaller local buffer

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This commit is contained in:
Jacob Barthelmeh
2017-12-19 11:55:40 -07:00
parent 0d5a772348
commit 89e57f4159
1 changed files with 4 additions and 2 deletions
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6
wolfcrypt/src/aes.c
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@@ -7348,7 +7348,8 @@ int wc_AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
/* sanity check on arguments */
if (aes == NULL || out == NULL || in == NULL || nonce == NULL
|| authTag == NULL || nonceSz < 7 || nonceSz > 13)
|| authTag == NULL || nonceSz < 7 || nonceSz > 13 ||
authTagSz > AES_BLOCK_SIZE)
return BAD_FUNC_ARG;
XMEMCPY(B+1, nonce, nonceSz);
@@ -7416,7 +7417,8 @@ int wc_AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
/* sanity check on arguments */
if (aes == NULL || out == NULL || in == NULL || nonce == NULL
|| authTag == NULL || nonceSz < 7 || nonceSz > 13)
|| authTag == NULL || nonceSz < 7 || nonceSz > 13 ||
authTagSz > AES_BLOCK_SIZE)
return BAD_FUNC_ARG;
o = out;