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Code Issues Releases Wiki Activity

asn: add underflow check to idx.

pull/8790/head
jordan 2025-05-19 19:04:27 -05:00
parent 05bc7e0d2f
commit c619c19a1d
1 changed files with 4 additions and 4 deletions
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8
wolfcrypt/src/asn.c
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@ -41543,11 +41543,11 @@ static void PrintObjectIdText(Asn1* asn1, Asn1PrintOptions* opts)
int nid;
#endif
const char* ln = NULL;
word32 i = 0;
word32 idx = 0;
int known = 1;
/* Get the OID value for the OBJECT_ID. */
if (GetObjectId(asn1->data + asn1->offset, &i, &oid, oidIgnoreType,
if (GetObjectId(asn1->data + asn1->offset, &idx, &oid, oidIgnoreType,
asn1->item.len + 2) == WC_NO_ERR_TRACE(ASN_PARSE_E)) {
known = 0;
}
@ -41563,9 +41563,9 @@ static void PrintObjectIdText(Asn1* asn1, Asn1PrintOptions* opts)
/* Lookup long name for extra known OID values. */
if (Oid2LongName(oid, &ln) != 0) {
}
else if ((asn1->nameCb != NULL) &&
else if ((asn1->nameCb != NULL) && (idx >= 2) &&
((ln = asn1->nameCb(asn1->data + asn1->offset + 2,
i - 2))) != NULL) {
idx - 2))) != NULL) {
}
else {
/* Unknown OID value. */