feedc0de/wolfssl
1
0
Fork 0
forked from wolfSSL/wolfssl
Code Pull Requests Activity

sanity check on buffer size

Browse Source
This commit is contained in:
Jacob Barthelmeh
2019-08-22 09:23:02 -06:00
parent cf83561b64
commit c6e4aebcdf
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
wolfcrypt/src/asn.c
View File

@ -7580,6 +7580,11 @@ static int DecodeCertExtensions(DecodedCert* cert)
/* check for critical flag */ /* check for critical flag */
critical = 0; critical = 0;
if ((idx + 1) > (word32)sz) {
WOLFSSL_MSG("\tfail: malformed buffer");
return BUFFER_E;
}
if (input[idx] == ASN_BOOLEAN) { if (input[idx] == ASN_BOOLEAN) {
ret = GetBoolean(input, &idx, sz); ret = GetBoolean(input, &idx, sz);
if (ret < 0) { if (ret < 0) {
@ -14443,6 +14448,11 @@ static int DecodeOcspRespExtensions(byte* source,
} }
/* check for critical flag */ /* check for critical flag */
if ((idx + 1) > (word32)sz) {
WOLFSSL_MSG("\tfail: malformed buffer");
return BUFFER_E;
}
if (source[idx] == ASN_BOOLEAN) { if (source[idx] == ASN_BOOLEAN) {
WOLFSSL_MSG("\tfound optional critical flag, moving past"); WOLFSSL_MSG("\tfound optional critical flag, moving past");
ret = GetBoolean(source, &idx, sz); ret = GetBoolean(source, &idx, sz);