Le mar. 27 janv. 2026 à 15:58, adarsh.jagadish.kamini via lists.openembedded.org <adarsh.jagadish.kamini= [email protected]> a écrit :
> From: Adarsh Jagadish Kamini <[email protected]> > > Signed-off-by: Adarsh Jagadish Kamini <[email protected]> > Hello, This fix was already sent a few days ago : [scarthgap][PATCH 1/2] avahi: patch CVE-2025-68276 https://lists.openembedded.org/g/openembedded-core/message/229929 Maybe you can help reviewing it? Thanks! > --- > meta/recipes-connectivity/avahi/avahi_0.8.bb | 1 + > .../avahi/files/CVE-2025-68276.patch | 68 +++++++++++++++++++ > 2 files changed, 69 insertions(+) > create mode 100644 > meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch > > diff --git a/meta/recipes-connectivity/avahi/avahi_0.8.bb > b/meta/recipes-connectivity/avahi/avahi_0.8.bb > index 7930bd3037..bb20fd17cc 100644 > --- a/meta/recipes-connectivity/avahi/avahi_0.8.bb > +++ b/meta/recipes-connectivity/avahi/avahi_0.8.bb > @@ -37,6 +37,7 @@ SRC_URI = > "${GITHUB_BASE_URI}/download/v${PV}/avahi-${PV}.tar.gz \ > file://CVE-2023-38473.patch \ > file://CVE-2024-52616.patch \ > file://CVE-2024-52615.patch \ > + file://CVE-2025-68276.patch \ > " > > GITHUB_BASE_URI = "https://github.com/avahi/avahi/releases/"; > diff --git a/meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch > b/meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch > new file mode 100644 > index 0000000000..b3e11f9597 > --- /dev/null > +++ b/meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch > @@ -0,0 +1,68 @@ > +From d5d18ced67e969d6a5052cacdbd7d4b2c97a1a3f Mon Sep 17 00:00:00 2001 > +From: Evgeny Vereshchagin <[email protected]> > +Date: Wed, 17 Dec 2025 08:11:23 +0000 > +Subject: [PATCH] core: refuse to create wide-area record browsers when > + wide-area is off > + > +It fixes a bug where it was possible for unprivileged local users to > +crash avahi-daemon (with wide-area disabled) by creating record browsers > +with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus (either by calling > +the RecordBrowserNew method directly or by creating > hostname/address/service > +resolvers/browsers that create those browsers internally themselves). > + > +``` > +$ 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 > + > +CVE: CVE-2025-68276 > +Upstream-Status: Backport [ > https://github.com/avahi/avahi/pull/806/commits/0c013e2e819be3bda74cecf48b5f64956cf8a760 > ] > + > +Signed-off-by: Adarsh Jagadish Kamini <[email protected]> > +--- > + avahi-core/browse.c | 5 +++++ > + 1 file changed, 5 insertions(+) > + > +diff --git a/avahi-core/browse.c b/avahi-core/browse.c > +index e8a915e..59d53cb 100644 > +--- a/avahi-core/browse.c > ++++ b/avahi-core/browse.c > +@@ -541,6 +541,11 @@ 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; > +-- > +2.34.1 > + > -- > 2.44.0 > > > > > -- Yoann Congal Smile ECS
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#230055): https://lists.openembedded.org/g/openembedded-core/message/230055 Mute This Topic: https://lists.openembedded.org/mt/117489381/21656 Group Owner: [email protected] Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
