Check return from call to wc_Time

2022-08-31 13:23:09 -05:00
parent e88bd66501
commit 5a25525b2e
1 changed files with 6 additions and 0 deletions
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@ -13727,6 +13727,12 @@ int wc_ValidateDate(const byte* date, byte format, int dateType)
    (void)tmpTime;

    ltime = wc_Time(0);
+    if (ltime < 0){
+        /* A negative response here could be due to a 32-bit time_t
+         * where the year is 2038 or later. */
+        WOLFSSL_MSG("wc_Time failed to return a valid value");
+        return 0;
+    }

 #ifdef WOLFSSL_BEFORE_DATE_CLOCK_SKEW
    if (dateType == BEFORE) {