Extension checking fixes.
When looking for an extension we need to set the last found
position to -1 to properly search all extensions.
PR#3309
(Imported from upstream's 5cd5e0219d2e9a8c1f2fec3d867f38179c3a86af)
diff --git a/crypto/x509v3/v3_purp.c b/crypto/x509v3/v3_purp.c
index c17c0e8..feebd9a 100644
--- a/crypto/x509v3/v3_purp.c
+++ b/crypto/x509v3/v3_purp.c
@@ -382,8 +382,8 @@
/* Handle proxy certificates */
if((pci=X509_get_ext_d2i(x, NID_proxyCertInfo, NULL, NULL))) {
if (x->ex_flags & EXFLAG_CA
- || X509_get_ext_by_NID(x, NID_subject_alt_name, 0) >= 0
- || X509_get_ext_by_NID(x, NID_issuer_alt_name, 0) >= 0) {
+ || X509_get_ext_by_NID(x, NID_subject_alt_name, -1) >= 0
+ || X509_get_ext_by_NID(x, NID_issuer_alt_name, -1) >= 0) {
x->ex_flags |= EXFLAG_INVALID;
}
if (pci->pcPathLengthConstraint) {
@@ -675,7 +675,7 @@
return 0;
/* Extended Key Usage MUST be critical */
- i_ext = X509_get_ext_by_NID((X509 *) x, NID_ext_key_usage, 0);
+ i_ext = X509_get_ext_by_NID((X509 *) x, NID_ext_key_usage, -1);
if (i_ext >= 0)
{
X509_EXTENSION *ext = X509_get_ext((X509 *) x, i_ext);
