diff options
Diffstat (limited to 'security/nss/lib/freebl/intel-gcm-wrap.c')
| -rw-r--r-- | security/nss/lib/freebl/intel-gcm-wrap.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/intel-gcm-wrap.c b/security/nss/lib/freebl/intel-gcm-wrap.c index 37a1af765..f69bc7c7a 100644 --- a/security/nss/lib/freebl/intel-gcm-wrap.c +++ b/security/nss/lib/freebl/intel-gcm-wrap.c @@ -62,6 +62,12 @@ intel_AES_GCM_CreateContext(void *context, PORT_SetError(SEC_ERROR_INVALID_ARGS); return NULL; } + // Limit AADLen in accordance with SP800-38D + if (sizeof(AAD_whole_len) >= 8 && AAD_whole_len > (1ULL << 61) - 1) { + PORT_SetError(SEC_ERROR_INPUT_LEN); + return NULL; + } + gcm = PORT_ZNew(intel_AES_GCMContext); if (gcm == NULL) { return NULL; @@ -159,6 +165,14 @@ intel_AES_GCM_EncryptUpdate(intel_AES_GCMContext *gcm, unsigned char T[AES_BLOCK_SIZE]; unsigned int j; + // GCM has a 16 octet block, with a 32-bit block counter + // Limit in accordance with SP800-38D + if (sizeof(inlen) > 4 && + inlen >= ((1ULL << 32) - 2) * AES_BLOCK_SIZE) { + PORT_SetError(SEC_ERROR_INPUT_LEN); + return SECFailure; + } + tagBytes = (gcm->tagBits + (PR_BITS_PER_BYTE - 1)) / PR_BITS_PER_BYTE; if (UINT_MAX - inlen < tagBytes) { PORT_SetError(SEC_ERROR_INPUT_LEN); @@ -216,6 +230,14 @@ intel_AES_GCM_DecryptUpdate(intel_AES_GCMContext *gcm, inlen -= tagBytes; intag = inbuf + inlen; + // GCM has a 16 octet block, with a 32-bit block counter + // Limit in accordance with SP800-38D + if (sizeof(inlen) > 4 && + inlen >= ((1ULL << 32) - 2) * AES_BLOCK_SIZE) { + PORT_SetError(SEC_ERROR_INPUT_LEN); + return SECFailure; + } + if (maxout < inlen) { *outlen = inlen; PORT_SetError(SEC_ERROR_OUTPUT_LEN); |