openssh/openssh-7.2p2-kex_resource_depletion.patch
2017-12-01 15:03:13 +00:00

31 lines
772 B
Diff

# HG changeset patch
# Parent 5d3b620e9c7c42bfb1d8f24eb7e0645a55d967fa
Prevent memory depletion during key exchange
CVE-2016-8858
bsc#1005480
upstream commit ec165c392ca54317dbe3064a8c200de6531e89ad
diff --git a/openssh-7.2p2/kex.c b/openssh-7.2p2/kex.c
--- a/openssh-7.2p2/kex.c
+++ b/openssh-7.2p2/kex.c
@@ -523,16 +523,17 @@ kex_input_kexinit(int type, u_int32_t se
u_int i;
size_t dlen;
int r;
debug("SSH2_MSG_KEXINIT received");
if (kex == NULL)
return SSH_ERR_INVALID_ARGUMENT;
+ ssh_dispatch_set(ssh, SSH2_MSG_KEXINIT, NULL);
ptr = sshpkt_ptr(ssh, &dlen);
if ((r = sshbuf_put(kex->peer, ptr, dlen)) != 0)
return r;
/* discard packet */
for (i = 0; i < KEX_COOKIE_LEN; i++)
if ((r = sshpkt_get_u8(ssh, NULL)) != 0)
return r;