iso15693tools: fix buffer overflow

2019-03-12 19:31:25 +01:00
parent 049f41a22f
commit c147b434a2
1 changed files with 2 additions and 1 deletions
--- a/common/iso15693tools.c
+++ b/common/iso15693tools.c
@@ -14,9 +14,10 @@
 // return: ptr to string
 char *Iso15693sprintUID(char *target, uint8_t *uid) {

-    static char tempbuf[2 * 8 + 1] = {0};
+    static char tempbuf[3 * 8 + 1] = {0};
    if (target == NULL)
        target = tempbuf;
+
    sprintf(target, "%02X %02X %02X %02X %02X %02X %02X %02X",
            uid[7], uid[6], uid[5], uid[4],
            uid[3], uid[2], uid[1], uid[0]