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Fix for general name parsing with WOLFSSL_ASN_TEMPLATE to use right length for general names and properly NULL terminate.

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This commit is contained in:
David Garske
2021-10-28 16:13:58 -07:00
parent 6b3ff9bae2
commit e60c2201b2
1 changed files with 4 additions and 3 deletions
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7
wolfcrypt/src/asn.c
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@ -13500,7 +13500,7 @@ static int ConfirmNameConstraints(Signer* signer, DecodedCert* cert)
return 0;
/* Check against the excluded list */
if (signer->excludedNames) {
if (signer->excludedNames != NULL) {
Base_entry* base = signer->excludedNames;
while (base != NULL) {
@ -15341,7 +15341,7 @@ static int DecodeSubtreeGeneralName(const byte* input, int sz, byte tag,
}
if (ret == 0) {
/* Allocate name. */
entry->name = (char*)XMALLOC(len, heap, DYNAMIC_TYPE_ALTNAME);
entry->name = (char*)XMALLOC(len + 1, heap, DYNAMIC_TYPE_ALTNAME);
if (entry->name == NULL) {
XFREE(entry, heap, DYNAMIC_TYPE_ALTNAME);
ret = MEMORY_E;
@ -15350,6 +15350,7 @@ static int DecodeSubtreeGeneralName(const byte* input, int sz, byte tag,
if (ret == 0) {
/* Store name, size and tag in object. */
XMEMCPY(entry->name, &input[nameIdx], len);
entry->name[len] = '\0';
entry->nameSz = len;
entry->type = tag & ASN_TYPE_MASK;
@ -15476,7 +15477,7 @@ static int DecodeSubtree(const byte* input, int sz, Base_entry** head,
/* Parse the general name and store a new entry. */
ret = DecodeSubtreeGeneralName(input +
GetASNItem_DataIdx(dataASN[1], input),
GetASNItem_EndIdx(dataASN[1], input), t, head, heap);
dataASN[1].length, t, head, heap);
}
/* Skip entry. */
}