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-rw-r--r--lib/vtls/nss.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c
index 20c4277ce..cfb226328 100644
--- a/lib/vtls/nss.c
+++ b/lib/vtls/nss.c
@@ -1002,10 +1002,10 @@ static SECStatus SelectClientCert(void *arg, PRFileDesc *sock,
struct ssl_connect_data *connssl = (struct ssl_connect_data *)arg;
struct Curl_easy *data = connssl->data;
const char *nickname = connssl->client_nickname;
+ static const char pem_slotname[] = "PEM Token #1";
if(connssl->obj_clicert) {
/* use the cert/key provided by PEM reader */
- static const char pem_slotname[] = "PEM Token #1";
SECItem cert_der = { 0, NULL, 0 };
void *proto_win = SSL_RevealPinArg(sock);
struct CERTCertificateStr *cert;
@@ -1067,6 +1067,12 @@ static SECStatus SelectClientCert(void *arg, PRFileDesc *sock,
if(NULL == nickname)
nickname = "[unknown]";
+ if(!strncmp(nickname, pem_slotname, sizeof(pem_slotname) - 1U)) {
+ failf(data, "NSS: refusing previously loaded certificate from file: %s",
+ nickname);
+ return SECFailure;
+ }
+
if(NULL == *pRetKey) {
failf(data, "NSS: private key not found for certificate: %s", nickname);
return SECFailure;