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authorMarkus Friedl <markus@cvs.openbsd.org>2001-06-23 05:26:03 +0000
committerMarkus Friedl <markus@cvs.openbsd.org>2001-06-23 05:26:03 +0000
commit6ef71fcb530fc9a775f3285bf915f49ee2794d45 (patch)
treede3983cda58d9293a87ec74d1abc388e02884b47
parentb49ad7e58f438882a88a0cf338a3c040abc145bb (diff)
handle sigature of size 0 (some broken clients send this).
-rw-r--r--usr.bin/ssh/key.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/usr.bin/ssh/key.c b/usr.bin/ssh/key.c
index 3b9f9f78621..84306a9b0d5 100644
--- a/usr.bin/ssh/key.c
+++ b/usr.bin/ssh/key.c
@@ -32,7 +32,7 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
-RCSID("$OpenBSD: key.c,v 1.25 2001/04/17 10:53:24 markus Exp $");
+RCSID("$OpenBSD: key.c,v 1.26 2001/06/23 05:26:02 markus Exp $");
#include <openssl/evp.h>
@@ -768,6 +768,9 @@ key_verify(
u_char *signature, int signaturelen,
u_char *data, int datalen)
{
+ if (signaturelen == 0)
+ return -1;
+
switch(key->type){
case KEY_DSA:
return ssh_dss_verify(key, signature, signaturelen, data, datalen);