Add an assortment of extra safety checks.

[originally from svn r9896]
2025-07-18 19:41:01 -05:00 · 2013-07-08 22:36:04 +00:00
parent ac8baf4cac
commit 8b6a8b617f
3 changed files with 6 additions and 2 deletions
--- a/sshrsa.c
+++ b/sshrsa.c
@ -526,6 +526,8 @@ static void getstring(char **data, int *datalen, char **p, int *length)
    if (*datalen < 4)
 	return;
    *length = GET_32BIT(*data);
+    if (*length < 0)
+        return;
    *datalen -= 4;
    *data += 4;
    if (*datalen < *length)