Update to Samba 4.2.11, fix badlock security bug
resolves: #1326453 - CVE-2015-5370 resolves: #1326453 - CVE-2016-2110 resolves: #1326453 - CVE-2016-2111 resolves: #1326453 - CVE-2016-2112 resolves: #1326453 - CVE-2016-2113 resolves: #1326453 - CVE-2016-2114 resolves: #1326453 - CVE-2016-2115 resolves: #1326453 - CVE-2016-2118 Guenther
This commit is contained in:
Günther Deschner
parent
d826544fa7
commit
d89d561988
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@ -55,3 +55,4 @@ samba-3.6.0pre1.tar.gz
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/samba-4.2.7.tar.xz
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/samba-4.2.8.tar.xz
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/samba-4.2.9.tar.xz
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/samba-4.2.11.tar.xz
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@ -0,0 +1,71 @@
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From 137649fc01e6914bbb86a2f5f16c7e03a2fa132d Mon Sep 17 00:00:00 2001
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From: Alexander Bokovoy <ab@samba.org>
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Date: Fri, 22 Jan 2016 11:44:03 +0200
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Subject: [PATCH] s3-parm: clean up defaults when removing global parameters
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=11693
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When globals are re-initialized, they are cleared and globals' talloc
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context is freed. However, parm_table still contains a reference to the
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global value in the defaults. This confuses lpcfg_string_free() after
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commit 795c543d858b2452f062a02846c2f908fe4cffe4 because it tries to
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free already freed pointer which is passed by lp_save_defaults():
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....
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case P_STRING:
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case P_USTRING:
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lpcfg_string_set(Globals.ctx,
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&parm_table[i].def.svalue,
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*(char **)lp_parm_ptr(NULL, &parm_table[i]));
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....
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here &parm_table[i].def.svalue is passed to lpcfg_string_free() but it
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is a pointer to a value allocated with previous Globals.ctx which
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already was freed.
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This specifically affects registry backend of smb.conf in lp_load_ex()
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where init_globals() called explicitly to re-init globals after
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lp_save_defaults() if we have registry backend defined.
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Reviewed-by: Uri Simchoni <uri@samba.org>
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Signed-off-by: Alexander Bokovoy <ab@samba.org>
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Autobuild-User(master): Uri Simchoni <uri@samba.org>
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Autobuild-Date(master): Mon Jan 25 23:58:42 CET 2016 on sn-devel-144
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---
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source3/param/loadparm.c | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/source3/param/loadparm.c b/source3/param/loadparm.c
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index 94de252..9bd47dc 100644
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--- a/source3/param/loadparm.c
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+++ b/source3/param/loadparm.c
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@@ -402,8 +402,25 @@ static void free_parameters_by_snum(int snum)
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*/
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static void free_global_parameters(void)
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{
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+ uint32_t i;
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+ struct parm_struct *parm;
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+
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free_param_opts(&Globals.param_opt);
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free_parameters_by_snum(GLOBAL_SECTION_SNUM);
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+
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+ /* Reset references in the defaults because the context is going to be freed */
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+ for (i=0; parm_table[i].label; i++) {
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+ parm = &parm_table[i];
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+ if ((parm->type == P_STRING) ||
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+ (parm->type == P_USTRING)) {
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+ if ((parm->def.svalue != NULL) &&
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+ (*(parm->def.svalue) != '\0')) {
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+ if (talloc_parent(parm->def.svalue) == Globals.ctx) {
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+ parm->def.svalue = NULL;
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+ }
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+ }
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+ }
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+ }
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TALLOC_FREE(Globals.ctx);
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}
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--
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2.5.5
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@ -0,0 +1,60 @@
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From b89f28556ad0d1caf9cf41c56a0d67440098358f Mon Sep 17 00:00:00 2001
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From: Alexander Bokovoy <abokovoy@redhat.com>
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Date: Tue, 12 Apr 2016 09:36:12 +0300
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Subject: [PATCH] s3-winbind: make sure domain member can talk to trusted
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domains DCs
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Allow cm_connect_netlogon() to talk to trusted domains' DCs when
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running in a domain member configuration.
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Signed-off-by: Alexander Bokovoy <ab@samba.org>
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---
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source3/winbindd/winbindd_cm.c | 15 +++++++++------
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1 file changed, 9 insertions(+), 6 deletions(-)
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diff --git a/source3/winbindd/winbindd_cm.c b/source3/winbindd/winbindd_cm.c
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index 63175e5..1ef3d17 100644
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--- a/source3/winbindd/winbindd_cm.c
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+++ b/source3/winbindd/winbindd_cm.c
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@@ -2578,9 +2578,10 @@ NTSTATUS cm_connect_sam(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
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anonymous:
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/* Finally fall back to anonymous. */
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- if (lp_winbind_sealed_pipes() || lp_require_strong_key()) {
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+ if ((lp_winbind_sealed_pipes() || lp_require_strong_key()) &&
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+ (IS_DC || domain->primary)) {
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status = NT_STATUS_DOWNGRADE_DETECTED;
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- DEBUG(1, ("Unwilling to make SAMR connection to domain %s"
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+ DEBUG(1, ("Unwilling to make SAMR connection to domain %s "
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"without connection level security, "
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"must set 'winbind sealed pipes = false' and "
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"'require strong key = false' to proceed: %s\n",
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@@ -2811,9 +2812,10 @@ NTSTATUS cm_connect_lsa(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx,
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anonymous:
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- if (lp_winbind_sealed_pipes() || lp_require_strong_key()) {
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+ if ((lp_winbind_sealed_pipes() || lp_require_strong_key()) &&
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+ (IS_DC || domain->primary)) {
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result = NT_STATUS_DOWNGRADE_DETECTED;
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- DEBUG(1, ("Unwilling to make LSA connection to domain %s"
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+ DEBUG(1, ("Unwilling to make LSA connection to domain %s "
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"without connection level security, "
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"must set 'winbind sealed pipes = false' and "
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"'require strong key = false' to proceed: %s\n",
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@@ -2978,9 +2980,10 @@ NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
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no_schannel:
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if (!(conn->netlogon_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
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- if (lp_winbind_sealed_pipes() || lp_require_strong_key()) {
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+ if ((lp_winbind_sealed_pipes() || lp_require_strong_key()) &&
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+ (IS_DC || domain->primary)) {
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result = NT_STATUS_DOWNGRADE_DETECTED;
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- DEBUG(1, ("Unwilling to make connection to domain %s"
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+ DEBUG(1, ("Unwilling to make connection to domain %s "
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"without connection level security, "
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"must set 'winbind sealed pipes = false' and "
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"'require strong key = false' to proceed: %s\n",
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--
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2.5.5
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19
samba.spec
19
samba.spec
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@ -8,7 +8,7 @@
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%define main_release 0
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%define samba_version 4.2.9
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%define samba_version 4.2.11
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%define talloc_version 2.1.2
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%define ntdb_version 1.0
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%define tdb_version 1.3.6
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@ -109,6 +109,9 @@ Source6: samba.pamd
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Source200: README.dc
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Source201: README.downgrade
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Patch0: samba-4.2.10-s3-winbind-make-sure-domain-member-can-talk-to-trust.patch
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Patch1: samba-4.2.10-s3-parm-clean-up-defaults-when-removing-global-param.patch
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BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
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Requires(pre): /usr/sbin/groupadd
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@ -644,6 +647,9 @@ and use CTDB instead.
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%prep
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%setup -q -n samba-%{version}%{pre_release}
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%patch0 -p 1 -b .samba-4.2.10-s3-winbind-make-sure-domain-member-can-talk-to-trust.patch
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%patch1 -p 1 -b .samba-4.2.10-s3-parm-clean-up-defaults-when-removing-global-param.patch
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%build
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%global _talloc_lib ,talloc,pytalloc,pytalloc-util
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%global _tevent_lib ,tevent,pytevent
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@ -1941,6 +1947,17 @@ rm -rf %{buildroot}
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%endif # with_clustering_support
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%changelog
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* Tue Apr 12 2016 Guenther Deschner <gdeschner@redhat.com> - 4.2.11-0
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- Update to Samba 4.2.11, fix badlock security bug
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- resolves: #1326453 - CVE-2015-5370
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- resolves: #1326453 - CVE-2016-2110
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- resolves: #1326453 - CVE-2016-2111
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- resolves: #1326453 - CVE-2016-2112
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- resolves: #1326453 - CVE-2016-2113
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- resolves: #1326453 - CVE-2016-2114
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- resolves: #1326453 - CVE-2016-2115
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- resolves: #1326453 - CVE-2016-2118
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* Tue Mar 08 2016 Guenther Deschner <gdeschner@redhat.com> - 4.2.9-0
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- Update to Samba 4.2.9
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- resolves: #1315942 - CVE-2015-7560 Incorrect ACL get/set allowed on symlink path
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