- markus@cvs.openbsd.org 2002/03/14 15:24:27

     [sshconnect1.c]
     don't trust size sent by (rogue) server; noted by s.esser@e-matters.de

1 files changed, 3 insertions, 1 deletions

diff --git a/sshconnect1.c b/sshconnect1.c
index d7722f4b9..393694138 100644
--- a/sshconnect1.c
+++ b/sshconnect1.c
@@ -13,7 +13,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: sshconnect1.c,v 1.48 2002/02/11 16:15:46 markus Exp $");
+RCSID("$OpenBSD: sshconnect1.c,v 1.49 2002/03/14 15:24:27 markus Exp $");
 
 #include <openssl/bn.h>
 #include <openssl/md5.h>
@@ -459,6 +459,8 @@ try_krb4_authentication(void)
 
                 /* Get server's response. */
                 reply = packet_get_string((u_int *) &auth.length);
+                if (auth.length >= MAX_KTXT_LEN)
+                        fatal("Kerberos v4: Malformed response from server");
                 memcpy(auth.dat, reply, auth.length);
                 xfree(reply);