src/patches/samba/CVE-2016-2125-v3.6.patch

   1 From 7cc3b25f4bf9e89e326d04b83bc7365f3cc29265 Mon Sep 17 00:00:00 2001
   2 From: Stefan Metzmacher <metze@samba.org>
   3 Date: Wed, 7 Dec 2016 10:58:35 +0100
   4 Subject: [PATCH] CVE-2016-2125: s3:gse: avoid using GSS_C_DELEG_FLAG
   5
   6 We should only use GSS_C_DELEG_POLICY_FLAG in order to let
   7 the KDC decide if we should send delegated credentials to
   8 a remote server.
   9
  10 BUG: https://bugzilla.samba.org/show_bug.cgi?id=12445
  11
  12 Signed-off-by: Stefan Metzmacher <metze@samba.org>
  13 Backported-by: Andreas Schneider <asn@samba.org>
  14 ---
  15  source3/librpc/crypto/gse.c | 1 -
  16  source3/libsmb/clifsinfo.c  | 2 +-
  17  2 files changed, 1 insertion(+), 2 deletions(-)
  18
  19 diff --git a/source3/librpc/crypto/gse.c b/source3/librpc/crypto/gse.c
  20 index 02fb0f6141d..211ca7774be 100644
  21 --- a/source3/librpc/crypto/gse.c
  22 +++ b/source3/librpc/crypto/gse.c
  23 @@ -162,7 +162,6 @@ static NTSTATUS gse_context_init(TALLOC_CTX *mem_ctx,
  24         memcpy(&gse_ctx->gss_mech, gss_mech_krb5, sizeof(gss_OID_desc));
  25
  26         gse_ctx->gss_c_flags = GSS_C_MUTUAL_FLAG |
  27 -                               GSS_C_DELEG_FLAG |
  28                                 GSS_C_DELEG_POLICY_FLAG |
  29                                 GSS_C_REPLAY_FLAG |
  30                                 GSS_C_SEQUENCE_FLAG;
  31 diff --git a/source3/libsmb/clifsinfo.c b/source3/libsmb/clifsinfo.c
  32 index 1d66eb4c6b8..34ebc208db0 100644
  33 --- a/source3/libsmb/clifsinfo.c
  34 +++ b/source3/libsmb/clifsinfo.c
  35 @@ -726,7 +726,7 @@ static NTSTATUS make_cli_gss_blob(TALLOC_CTX *ctx,
  36                                 &es->s.gss_state->gss_ctx,
  37                                 srv_name,
  38                                 GSS_C_NO_OID, /* default OID. */
  39 -                               GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
  40 +                               GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_POLICY_FLAG,
  41                                 GSS_C_INDEFINITE,       /* requested ticket lifetime. */
  42                                 NULL,   /* no channel bindings */
  43                                 p_tok_in,
  44 --
  45 2.11.0
  46