diff options
| author | Baruch Siach <baruch@tkos.co.il> | 2016-11-15 08:34:18 +0200 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-11-15 12:58:20 +0100 |
| commit | aae80e71b6ce75bdf73cc9b84ec96c92ed13aa58 (patch) | |
| tree | bea0f922e90db3d6229a1d2cfaff755750abd6f6 | |
| parent | 2114cf021f493defdc3aa6f21259a317aaf62493 (diff) | |
openssh: add upstream security fix
Fixes CVE-2016-8858: Memory exhaustion, up to 128MB, of unauthenticated peer.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| -rw-r--r-- | package/openssh/0003-fix-CVE-2016-8858.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/package/openssh/0003-fix-CVE-2016-8858.patch b/package/openssh/0003-fix-CVE-2016-8858.patch new file mode 100644 index 000000000..4ba1cfdc0 --- /dev/null +++ b/package/openssh/0003-fix-CVE-2016-8858.patch @@ -0,0 +1,31 @@ +From ec165c392ca54317dbe3064a8c200de6531e89ad Mon Sep 17 00:00:00 2001 +From: "markus@openbsd.org" <markus@openbsd.org> +Date: Mon, 10 Oct 2016 19:28:48 +0000 +Subject: [PATCH] upstream commit + +Unregister the KEXINIT handler after message has been +received. Otherwise an unauthenticated peer can repeat the KEXINIT and cause +allocation of up to 128MB -- until the connection is closed. Reported by +shilei-c at 360.cn + +Upstream-ID: 43649ae12a27ef94290db16d1a98294588b75c05 + +Signed-off-by: Baruch Siach <baruch@tkos.co.il> +--- +Patch status: upstream + + kex.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/kex.c b/kex.c +index 3f97f8c..6a94bc5 100644 +--- a/kex.c ++++ b/kex.c +@@ -481,6 +481,7 @@ kex_input_kexinit(int type, u_int32_t seq, void *ctxt) + 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; |