Accepting request 1327172 from GNOME:Factory

Add avahi-CVE-2025-68276.patch, avahi-CVE-2025-68468.patch, avahi-CVE-2025-68471.patch, to fix security bugs (CVE-2025-68468, bsc#1256499, CVE-2025-68471, bsc#1256500, CVE-2025-68276, bsc#1256498) (forwarded request 1327114 from qzhao)

OBS-URL: https://build.opensuse.org/request/show/1327172
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/avahi?expand=0&rev=175

avahi-CVE-2025-68276.patch

@@ -0,0 +1,63 @@
+From 2d48e42d44a183f26a4d12d1f5d41abb9b7c6355 Mon Sep 17 00:00:00 2001
+From: Evgeny Vereshchagin <evvers@ya.ru>
+Date: Wed, 17 Dec 2025 08:11:23 +0000
+Subject: [PATCH] core: refuse to create wide-area record browsers when
+ wide-area is off
+
+It fixes a bug where it was possible for unprivileged local users to
+crash avahi-daemon (with wide-area disabled) by creating record browsers
+with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus (either by calling
+the RecordBrowserNew method directly or by creating hostname/address/service
+resolvers/browsers that create those browsers internally themselves).
+
+```
+$ gdbus call --system --dest org.freedesktop.Avahi --object-path / --method org.freedesktop.Avahi.Server.ResolveHostName -- -1 -1 yo.local -1 1
+Error: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
+```
+```
+dbus-protocol.c: interface=org.freedesktop.Avahi.Server, path=/, member=ResolveHostName
+avahi-daemon: wide-area.c:725: avahi_wide_area_scan_cache: Assertion `e' failed.
+==307948==
+==307948== Process terminating with default action of signal 6 (SIGABRT)
+==307948==    at 0x4B3630C: __pthread_kill_implementation (pthread_kill.c:44)
+==307948==    by 0x4ADF921: raise (raise.c:26)
+==307948==    by 0x4AC74AB: abort (abort.c:77)
+==307948==    by 0x4AC741F: __assert_fail_base.cold (assert.c:118)
+==307948==    by 0x48D8B85: avahi_wide_area_scan_cache (wide-area.c:725)
+==307948==    by 0x48C8953: lookup_scan_cache (browse.c:351)
+==307948==    by 0x48C8B1B: lookup_go (browse.c:386)
+==307948==    by 0x48C9148: defer_callback (browse.c:516)
+==307948==    by 0x48AEA0E: expiration_event (timeeventq.c:94)
+==307948==    by 0x489D3AE: timeout_callback (simple-watch.c:447)
+==307948==    by 0x489D787: avahi_simple_poll_dispatch (simple-watch.c:563)
+==307948==    by 0x489D91E: avahi_simple_poll_iterate (simple-watch.c:605)
+==307948==
+```
+
+wide-area has been disabled by default since
+9c4214146738146e454f098264690e8e884c39bd (v0.9-rc2).
+
+https://github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc
+---
+ avahi-core/browse.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/avahi-core/browse.c b/avahi-core/browse.c
+index 0afeba7..d7d541b 100644
+--- a/avahi-core/browse.c
++++ b/avahi-core/browse.c
+@@ -583,6 +583,11 @@ AvahiSRecordBrowser *avahi_s_record_browser_prepare(
+     AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_FLAGS_VALID(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+     AVAHI_CHECK_VALIDITY_RETURN_NULL(server, !(flags & AVAHI_LOOKUP_USE_WIDE_AREA) || !(flags & AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+ 
++    if ((flags & AVAHI_LOOKUP_USE_WIDE_AREA) && !server->wide_area_lookup_engine) {
++        avahi_server_set_errno(server, AVAHI_ERR_NOT_SUPPORTED);
++        return NULL;
++    }
++
+     if (!(b = avahi_new(AvahiSRecordBrowser, 1))) {
+         avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
+         return NULL;
+-- 
+2.49.0
+

avahi-CVE-2025-68468.patch

@@ -0,0 +1,25 @@
+From f66be13d7f31a3ef806d226bf8b67240179d309a Mon Sep 17 00:00:00 2001
+From: Hugo Muis <198191869+friendlyhugo@users.noreply.github.com>
+Date: Sun, 2 Mar 2025 18:06:24 +0100
+Subject: [PATCH] core: fix DoS bug by removing incorrect assertion
+
+Closes https://github.com/avahi/avahi/issues/683
+---
+ avahi-core/browse.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/avahi-core/browse.c b/avahi-core/browse.c
+index e00cbed..0afeba7 100644
+--- a/avahi-core/browse.c
++++ b/avahi-core/browse.c
+@@ -295,7 +295,6 @@ static void lookup_multicast_callback(
+                 lookup_drop_cname(l, interface, protocol, 0, r);
+             else {
+                 /* It's a normal record, so let's call the user callback */
+-                assert(avahi_key_equal(b->key, l->key));
+ 
+                 b->callback(b, interface, protocol, event, r, flags, b->userdata);
+             }
+-- 
+2.49.0
+

avahi-CVE-2025-68471.patch

@@ -0,0 +1,29 @@
+From 9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1 Mon Sep 17 00:00:00 2001
+From: Hugo Muis <198191869+friendlyhugo@users.noreply.github.com>
+Date: Sun, 2 Mar 2025 18:06:24 +0100
+Subject: [PATCH] core: fix DoS bug by changing assert to return
+
+Closes https://github.com/avahi/avahi/issues/678
+---
+ avahi-core/browse.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/avahi-core/browse.c b/avahi-core/browse.c
+index e8a915e..ad08bd6 100644
+--- a/avahi-core/browse.c
++++ b/avahi-core/browse.c
+@@ -320,7 +320,10 @@ static int lookup_start(AvahiSRBLookup *l) {
+     assert(l);
+ 
+     assert(!(l->flags & AVAHI_LOOKUP_USE_WIDE_AREA) != !(l->flags & AVAHI_LOOKUP_USE_MULTICAST));
+-    assert(!l->wide_area && !l->multicast);
++    if (l->wide_area || l->multicast) {
++        /* Avoid starting a duplicate lookup */
++        return 0;
++    }
+ 
+     if (l->flags & AVAHI_LOOKUP_USE_WIDE_AREA) {
+ 
+-- 
+2.49.0
+

avahi.changes

@@ -1,3 +1,27 @@
+-------------------------------------------------------------------
+Tue Jan 13 04:23:18 UTC 2026 - Cliff Zhao <qzhao@suse.com>
+
+- Add avahi-CVE-2025-68276.patch:
+  Backport 0c013e2 from upstream, refuse to create wide-area record
+  browsers when wide-area is off.
+  (CVE-2025-68276, bsc#1256498)
+
+-------------------------------------------------------------------
+Tue Jan 13 04:23:18 UTC 2026 - Cliff Zhao <qzhao@suse.com>
+
+- Add avahi-CVE-2025-68471.patch: 
+  Backport 9c6eb53 from upstream, fix DoS bug by changing assert to
+  return.
+  (CVE-2025-68471, bsc#1256500)
+
+-------------------------------------------------------------------
+Tue Jan 13 04:23:18 UTC 2026 - Cliff Zhao <qzhao@suse.com>
+
+- Add avahi-CVE-2025-68468.patch:
+  Backport f66be13 from upstream, fix DoS bug by removing incorrect
+  assertion.
+  (CVE-2025-68468, bsc#1256499)
+
 -------------------------------------------------------------------
 Mon Sep 15 14:32:04 UTC 2025 - Cliff Zhao <qzhao@suse.com>
 

avahi.spec

@@ -1,7 +1,7 @@
 #
 # spec file for package avahi
 #
-# Copyright (c) 2025 SUSE LLC
+# Copyright (c) 2026 SUSE LLC and contributors
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -135,6 +135,12 @@ Patch37:        avahi-CVE-2024-52616.patch
 Patch38:        0001-Enable-building-with-Qt6.patch
 # PATCH-FIX-UPSTREAM avahi-CVE-2024-52615.patch CVE-2024-52615 bsc#1233421 qzhao@suse.com -- Resolve fixed source ports for wide-area DNS queries cause DNS responses be injected.
 Patch39:        avahi-CVE-2024-52615.patch
+# PATCH-FIX-UPSTREAM avahi-CVE-2025-68468.patch CVE-2025-68468 bsc#1256499 qzhao@suse.com -- fix DoS bug by removing incorrect assertion.
+Patch40:        avahi-CVE-2025-68468.patch
+# PATCH-FIX-UPSTREAM avahi-CVE-2025-68471.patch CVE-2025-68471 bsc#1256500 qzhao@suse.com -- fix DoS bug by changing assert to return.
+Patch41:        avahi-CVE-2025-68471.patch
+# PATCH-FIX-UPSTREAM avahi-CVE-2025-68276.patch CVE-2025-68276 bsc#1256498 qzhao@suse.com -- refuse to create wide-area record browsers when wide-area is off.
+Patch42:        avahi-CVE-2025-68276.patch
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  gdbm-devel