diff options
Diffstat (limited to 'meta/recipes-connectivity/avahi/files')
14 files changed, 847 insertions, 10 deletions
diff --git a/meta/recipes-connectivity/avahi/files/0001-Fix-opening-etc-resolv.conf-error.patch b/meta/recipes-connectivity/avahi/files/0001-Fix-opening-etc-resolv.conf-error.patch new file mode 100644 index 0000000000..cb8b83fd23 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/0001-Fix-opening-etc-resolv.conf-error.patch @@ -0,0 +1,45 @@ +From 78967814f5c37ed67f4cf64d70c9f76a03ee89bc Mon Sep 17 00:00:00 2001 +From: Chen Qi <Qi.Chen@windriver.com> +Date: Wed, 20 Jun 2018 13:57:35 +0800 +Subject: [PATCH] Fix opening /etc/resolv.conf error + +Fix to start avahi-daemon after systemd-resolved.service. This is because +/etc/resolv.conf is a link to /etc/resolv-conf.systemd which in turn is +a symlink to /run/systemd/resolve/resolv.conf. And /run/systemd/resolve/resolv.conf +is created by systemd-resolved.service by default in current OE's systemd +based systems. + +This fixes errro like below. + + Failed to open /etc/resolv.conf: Invalid argument + +In fact, handling of /etc/resolv.conf is quite distro specific. So this patch +is marked as OE specific. + +Upstream-Status: Inappropriate [OE Specific] + +Signed-off-by: Chen Qi <Qi.Chen@windriver.com> + +When connman installed to image, /etc/resolv.conf is link to +/etc/resolv-conf.connman. So launch avahi-daemon after connman too. + +Signed-off-by: Kai Kang <kai.kang@windriver.com> +--- + avahi-daemon/avahi-daemon.service.in | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/avahi-daemon/avahi-daemon.service.in b/avahi-daemon/avahi-daemon.service.in +index 548c834..63e28e4 100644 +--- a/avahi-daemon/avahi-daemon.service.in ++++ b/avahi-daemon/avahi-daemon.service.in +@@ -18,6 +18,7 @@ + [Unit] + Description=Avahi mDNS/DNS-SD Stack + Requires=avahi-daemon.socket ++After=systemd-resolved.service connman.service + + [Service] + Type=dbus +-- +2.11.0 + diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-1981.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-1981.patch new file mode 100644 index 0000000000..4d7924d13a --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-1981.patch @@ -0,0 +1,58 @@ +From a2696da2f2c50ac43b6c4903f72290d5c3fa9f6f Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com> +Date: Thu, 17 Nov 2022 01:51:53 +0100 +Subject: [PATCH] Emit error if requested service is not found + +It currently just crashes instead of replying with error. Check return +value and emit error instead of passing NULL pointer to reply. + +Fixes #375 + +Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-1981.patch?h=ubuntu/jammy-security +Upstream commit https://github.com/lathiat/avahi/commit/a2696da2f2c50ac43b6c4903f72290d5c3fa9f6f] +CVE: CVE-2023-1981 +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + avahi-daemon/dbus-protocol.c | 20 ++++++++++++++------ + 1 file changed, 14 insertions(+), 6 deletions(-) + +diff --git a/avahi-daemon/dbus-protocol.c b/avahi-daemon/dbus-protocol.c +index 70d7687bc..406d0b441 100644 +--- a/avahi-daemon/dbus-protocol.c ++++ b/avahi-daemon/dbus-protocol.c +@@ -375,10 +375,14 @@ static DBusHandlerResult dbus_get_alternative_host_name(DBusConnection *c, DBusM + } + + t = avahi_alternative_host_name(n); +- avahi_dbus_respond_string(c, m, t); +- avahi_free(t); ++ if (t) { ++ avahi_dbus_respond_string(c, m, t); ++ avahi_free(t); + +- return DBUS_HANDLER_RESULT_HANDLED; ++ return DBUS_HANDLER_RESULT_HANDLED; ++ } else { ++ return avahi_dbus_respond_error(c, m, AVAHI_ERR_NOT_FOUND, "Hostname not found"); ++ } + } + + static DBusHandlerResult dbus_get_alternative_service_name(DBusConnection *c, DBusMessage *m, DBusError *error) { +@@ -389,10 +393,14 @@ static DBusHandlerResult dbus_get_alternative_service_name(DBusConnection *c, DB + } + + t = avahi_alternative_service_name(n); +- avahi_dbus_respond_string(c, m, t); +- avahi_free(t); ++ if (t) { ++ avahi_dbus_respond_string(c, m, t); ++ avahi_free(t); + +- return DBUS_HANDLER_RESULT_HANDLED; ++ return DBUS_HANDLER_RESULT_HANDLED; ++ } else { ++ return avahi_dbus_respond_error(c, m, AVAHI_ERR_NOT_FOUND, "Service not found"); ++ } + } + + static DBusHandlerResult dbus_create_new_entry_group(DBusConnection *c, DBusMessage *m, DBusError *error) { diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38469-1.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38469-1.patch new file mode 100644 index 0000000000..a078f66102 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38469-1.patch @@ -0,0 +1,48 @@ +From 72842945085cc3adaccfdfa2853771b0e75ef991 Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin <evvers@ya.ru> +Date: Mon, 23 Oct 2023 20:29:31 +0000 +Subject: [PATCH] avahi: core: reject overly long TXT resource records + +Closes https://github.com/lathiat/avahi/issues/455 + +Upstream-Status: Backport [https://github.com/lathiat/avahi/commit/a337a1ba7d15853fb56deef1f464529af6e3a1cf] +CVE: CVE-2023-38469 + +Signed-off-by: Meenali Gupta <meenali.gupta@windriver.com> +--- + avahi-core/rr.c | 9 ++++++++- + 1 file changed, 8 insertions(+), 1 deletion(-) + +diff --git a/avahi-core/rr.c b/avahi-core/rr.c +index 7fa0bee..b03a24c 100644 +--- a/avahi-core/rr.c ++++ b/avahi-core/rr.c +@@ -32,6 +32,7 @@ + #include <avahi-common/malloc.h> + #include <avahi-common/defs.h> + ++#include "dns.h" + #include "rr.h" + #include "log.h" + #include "util.h" +@@ -688,11 +689,17 @@ int avahi_record_is_valid(AvahiRecord *r) { + case AVAHI_DNS_TYPE_TXT: { + + AvahiStringList *strlst; ++ size_t used = 0; + +- for (strlst = r->data.txt.string_list; strlst; strlst = strlst->next) ++ for (strlst = r->data.txt.string_list; strlst; strlst = strlst->next) { + if (strlst->size > 255 || strlst->size <= 0) + return 0; + ++ used += 1+strlst->size; ++ if (used > AVAHI_DNS_RDATA_MAX) ++ return 0; ++ } ++ + return 1; + } + } +-- +2.40.0 diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38469-2.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38469-2.patch new file mode 100644 index 0000000000..f8f60ddca1 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38469-2.patch @@ -0,0 +1,65 @@ +From c6cab87df290448a63323c8ca759baa516166237 Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin <evvers@ya.ru> +Date: Wed, 25 Oct 2023 18:15:42 +0000 +Subject: [PATCH] tests: pass overly long TXT resource records + +to make sure they don't crash avahi any more. +It reproduces https://github.com/lathiat/avahi/issues/455 + +Canonical notes: +nickgalanis> removed first hunk since there is no .github dir in this release + +Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38469-2.patch?h=ubuntu/jammy-security +Upstream commit https://github.com/lathiat/avahi/commit/c6cab87df290448a63323c8ca759baa516166237] +CVE: CVE-2023-38469 +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + avahi-client/client-test.c | 14 ++++++++++++++ + 1 files changed, 14 insertions(+) + +Index: avahi-0.8/avahi-client/client-test.c +=================================================================== +--- avahi-0.8.orig/avahi-client/client-test.c ++++ avahi-0.8/avahi-client/client-test.c +@@ -22,6 +22,7 @@ + #endif + + #include <stdio.h> ++#include <string.h> + #include <assert.h> + + #include <avahi-client/client.h> +@@ -33,6 +34,8 @@ + #include <avahi-common/malloc.h> + #include <avahi-common/timeval.h> + ++#include <avahi-core/dns.h> ++ + static const AvahiPoll *poll_api = NULL; + static AvahiSimplePoll *simple_poll = NULL; + +@@ -222,6 +225,9 @@ int main (AVAHI_GCC_UNUSED int argc, AVA + uint32_t cookie; + struct timeval tv; + AvahiAddress a; ++ uint8_t rdata[AVAHI_DNS_RDATA_MAX+1]; ++ AvahiStringList *txt = NULL; ++ int r; + + simple_poll = avahi_simple_poll_new(); + poll_api = avahi_simple_poll_get(simple_poll); +@@ -258,6 +264,14 @@ int main (AVAHI_GCC_UNUSED int argc, AVA + printf("%s\n", avahi_strerror(avahi_entry_group_add_service (group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "Lathiat's Site", "_http._tcp", NULL, NULL, 80, "foo=bar", NULL))); + printf("add_record: %d\n", avahi_entry_group_add_record (group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "TestX", 0x01, 0x10, 120, "\5booya", 6)); + ++ memset(rdata, 1, sizeof(rdata)); ++ r = avahi_string_list_parse(rdata, sizeof(rdata), &txt); ++ assert(r >= 0); ++ assert(avahi_string_list_serialize(txt, NULL, 0) == sizeof(rdata)); ++ error = avahi_entry_group_add_service_strlst(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "TestX", "_qotd._tcp", NULL, NULL, 123, txt); ++ assert(error == AVAHI_ERR_INVALID_RECORD); ++ avahi_string_list_free(txt); ++ + avahi_entry_group_commit (group); + + domain = avahi_domain_browser_new (avahi, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DOMAIN_BROWSER_BROWSE, 0, avahi_domain_browser_callback, (char*) "omghai3u"); diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38470-1.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38470-1.patch new file mode 100644 index 0000000000..91f9e677ac --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38470-1.patch @@ -0,0 +1,59 @@ +From af7bfad67ca53a7c4042a4a2d85456b847e9f249 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com> +Date: Tue, 11 Apr 2023 15:29:59 +0200 +Subject: [PATCH] avahi: Ensure each label is at least one byte long + +The only allowed exception is single dot, where it should return empty +string. + +Fixes #454. + +Upstream-Status: Backport [https://github.com/lathiat/avahi/commit/94cb6489114636940ac683515417990b55b5d66c] +CVE: CVE-2023-38470 + +Signed-off-by: Meenali Gupta <meenali.gupta@windriver.com> +--- + avahi-common/domain-test.c | 14 ++++++++++++++ + avahi-common/domain.c | 2 +- + 2 files changed, 15 insertions(+), 1 deletion(-) + +diff --git a/avahi-common/domain-test.c b/avahi-common/domain-test.c +index cf763ec..3acc1c1 100644 +--- a/avahi-common/domain-test.c ++++ b/avahi-common/domain-test.c +@@ -45,6 +45,20 @@ int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) { + printf("%s\n", s = avahi_normalize_name_strdup("fo\\\\o\\..f oo.")); + avahi_free(s); + ++ printf("%s\n", s = avahi_normalize_name_strdup(".")); ++ avahi_free(s); ++ ++ s = avahi_normalize_name_strdup(",.=.}.=.?-.}.=.?.?.}.}.?.?.?.z.?.?.}.}." ++ "}.?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM.=.=.?.?.}.}.?.?.}.}.}" ++ ".?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM.=.=.?.?.}.}.?.?.?.zM.?`" ++ "?.}.}.}.?.?.?.r.=.?.}.=.?.?.}.?.?.?.}.=.?.?.}??.}.}.?.?." ++ "?.z.?.?.}.}.}.?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM.?`?.}.}.}." ++ "??.?.zM.?`?.}.}.}.?.?.?.r.=.?.}.=.?.?.}.?.?.?.}.=.?.?.}?" ++ "?.}.}.?.?.?.z.?.?.}.}.}.?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM." ++ "?`?.}.}.}.?.?.?.r.=.=.?.?`.?.?}.}.}.?.?.?.r.=.?.}.=.?.?." ++ "}.?.?.?.}.=.?.?.}"); ++ assert(s == NULL); ++ + printf("%i\n", avahi_domain_equal("\\065aa bbb\\.\\046cc.cc\\\\.dee.fff.", "Aaa BBB\\.\\.cc.cc\\\\.dee.fff")); + printf("%i\n", avahi_domain_equal("A", "a")); + +diff --git a/avahi-common/domain.c b/avahi-common/domain.c +index 3b1ab68..e66d241 100644 +--- a/avahi-common/domain.c ++++ b/avahi-common/domain.c +@@ -201,7 +201,7 @@ char *avahi_normalize_name(const char *s, char *ret_s, size_t size) { + } + + if (!empty) { +- if (size < 1) ++ if (size < 2) + return NULL; + + *(r++) = '.'; +-- +2.40.0 diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38470-2.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38470-2.patch new file mode 100644 index 0000000000..e0736bf210 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38470-2.patch @@ -0,0 +1,52 @@ +From 20dec84b2480821704258bc908e7b2bd2e883b24 Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin <evvers@ya.ru> +Date: Tue, 19 Sep 2023 03:21:25 +0000 +Subject: [PATCH] [common] bail out when escaped labels can't fit into ret + +Fixes: +``` +==93410==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7f9e76f14c16 at pc 0x00000047208d bp 0x7ffee90a6a00 sp 0x7ffee90a61c8 +READ of size 1110 at 0x7f9e76f14c16 thread T0 + #0 0x47208c in __interceptor_strlen (out/fuzz-domain+0x47208c) (BuildId: 731b20c1eef22c2104e75a6496a399b10cfc7cba) + #1 0x534eb0 in avahi_strdup avahi/avahi-common/malloc.c:167:12 + #2 0x53862c in avahi_normalize_name_strdup avahi/avahi-common/domain.c:226:12 +``` +and +``` +fuzz-domain: fuzz/fuzz-domain.c:38: int LLVMFuzzerTestOneInput(const uint8_t *, size_t): Assertion `avahi_domain_equal(s, t)' failed. +==101571== ERROR: libFuzzer: deadly signal + #0 0x501175 in __sanitizer_print_stack_trace (/home/vagrant/avahi/out/fuzz-domain+0x501175) (BuildId: 682bf6400aff9d41b64b6e2cc3ef5ad600216ea8) + #1 0x45ad2c in fuzzer::PrintStackTrace() (/home/vagrant/avahi/out/fuzz-domain+0x45ad2c) (BuildId: 682bf6400aff9d41b64b6e2cc3ef5ad600216ea8) + #2 0x43fc07 in fuzzer::Fuzzer::CrashCallback() (/home/vagrant/avahi/out/fuzz-domain+0x43fc07) (BuildId: 682bf6400aff9d41b64b6e2cc3ef5ad600216ea8) + #3 0x7f1581d7ebaf (/lib64/libc.so.6+0x3dbaf) (BuildId: c9f62793b9e886eb1b95077d4f26fe2b4aa1ac25) + #4 0x7f1581dcf883 in __pthread_kill_implementation (/lib64/libc.so.6+0x8e883) (BuildId: c9f62793b9e886eb1b95077d4f26fe2b4aa1ac25) + #5 0x7f1581d7eafd in gsignal (/lib64/libc.so.6+0x3dafd) (BuildId: c9f62793b9e886eb1b95077d4f26fe2b4aa1ac25) + #6 0x7f1581d6787e in abort (/lib64/libc.so.6+0x2687e) (BuildId: c9f62793b9e886eb1b95077d4f26fe2b4aa1ac25) + #7 0x7f1581d6779a in __assert_fail_base.cold (/lib64/libc.so.6+0x2679a) (BuildId: c9f62793b9e886eb1b95077d4f26fe2b4aa1ac25) + #8 0x7f1581d77186 in __assert_fail (/lib64/libc.so.6+0x36186) (BuildId: c9f62793b9e886eb1b95077d4f26fe2b4aa1ac25) + #9 0x5344a4 in LLVMFuzzerTestOneInput /home/vagrant/avahi/fuzz/fuzz-domain.c:38:9 +``` + +It's a follow-up to 94cb6489114636940ac683515417990b55b5d66c + +Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38470-2.patch?h=ubuntu/jammy-security +CVE: CVE-2023-38470 #Follow-up patch +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + avahi-common/domain.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +Index: avahi-0.8/avahi-common/domain.c +=================================================================== +--- avahi-0.8.orig/avahi-common/domain.c ++++ avahi-0.8/avahi-common/domain.c +@@ -210,7 +210,8 @@ char *avahi_normalize_name(const char *s + } else + empty = 0; + +- avahi_escape_label(label, strlen(label), &r, &size); ++ if (!(avahi_escape_label(label, strlen(label), &r, &size))) ++ return NULL; + } + + return ret_s; diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38471-1.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38471-1.patch new file mode 100644 index 0000000000..b3f716495d --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38471-1.patch @@ -0,0 +1,73 @@ +From 48d745db7fd554fc33e96ec86d3675ebd530bb8e Mon Sep 17 00:00:00 2001 +From: Michal Sekletar <msekleta@redhat.com> +Date: Mon, 23 Oct 2023 13:38:35 +0200 +Subject: [PATCH] avahi: core: extract host name using avahi_unescape_label() + +Previously we could create invalid escape sequence when we split the +string on dot. For example, from valid host name "foo\\.bar" we have +created invalid name "foo\\" and tried to set that as the host name +which crashed the daemon. + +Fixes #453 + +Upstream-Status: Backport [https://github.com/lathiat/avahi/commit/894f085f402e023a98cbb6f5a3d117bd88d93b09] +CVE: CVE-2023-38471 + +Signed-off-by: Meenali Gupta <meenali.gupta@windriver.com> +--- + avahi-core/server.c | 27 +++++++++++++++++++++------ + 1 file changed, 21 insertions(+), 6 deletions(-) + +diff --git a/avahi-core/server.c b/avahi-core/server.c +index e507750..40f1d68 100644 +--- a/avahi-core/server.c ++++ b/avahi-core/server.c +@@ -1295,7 +1295,11 @@ static void update_fqdn(AvahiServer *s) { + } + + int avahi_server_set_host_name(AvahiServer *s, const char *host_name) { +- char *hn = NULL; ++ char label_escaped[AVAHI_LABEL_MAX*4+1]; ++ char label[AVAHI_LABEL_MAX]; ++ char *hn = NULL, *h; ++ size_t len; ++ + assert(s); + + AVAHI_CHECK_VALIDITY(s, !host_name || avahi_is_valid_host_name(host_name), AVAHI_ERR_INVALID_HOST_NAME); +@@ -1305,17 +1309,28 @@ int avahi_server_set_host_name(AvahiServer *s, const char *host_name) { + else + hn = avahi_normalize_name_strdup(host_name); + +- hn[strcspn(hn, ".")] = 0; ++ h = hn; ++ if (!avahi_unescape_label((const char **)&hn, label, sizeof(label))) { ++ avahi_free(h); ++ return AVAHI_ERR_INVALID_HOST_NAME; ++ } ++ ++ avahi_free(h); ++ ++ h = label_escaped; ++ len = sizeof(label_escaped); ++ if (!avahi_escape_label(label, strlen(label), &h, &len)) ++ return AVAHI_ERR_INVALID_HOST_NAME; + +- if (avahi_domain_equal(s->host_name, hn) && s->state != AVAHI_SERVER_COLLISION) { +- avahi_free(hn); ++ if (avahi_domain_equal(s->host_name, label_escaped) && s->state != AVAHI_SERVER_COLLISION) + return avahi_server_set_errno(s, AVAHI_ERR_NO_CHANGE); +- } + + withdraw_host_rrs(s); + + avahi_free(s->host_name); +- s->host_name = hn; ++ s->host_name = avahi_strdup(label_escaped); ++ if (!s->host_name) ++ return AVAHI_ERR_NO_MEMORY; + + update_fqdn(s); + +-- +2.40.0 diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38471-2.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38471-2.patch new file mode 100644 index 0000000000..44737bfc2e --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38471-2.patch @@ -0,0 +1,52 @@ +From b675f70739f404342f7f78635d6e2dcd85a13460 Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin <evvers@ya.ru> +Date: Tue, 24 Oct 2023 22:04:51 +0000 +Subject: [PATCH] core: return errors from avahi_server_set_host_name properly + +It's a follow-up to 894f085f402e023a98cbb6f5a3d117bd88d93b09 + +Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38471-2.patch?h=ubuntu/jammy-security +Upstream commit https://github.com/lathiat/avahi/commit/b675f70739f404342f7f78635d6e2dcd85a13460] +CVE: CVE-2023-38471 #Follow-up Patch +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + avahi-core/server.c | 9 ++++++--- + 1 file changed, 6 insertions(+), 3 deletions(-) + +Index: avahi-0.8/avahi-core/server.c +=================================================================== +--- avahi-0.8.orig/avahi-core/server.c ++++ avahi-0.8/avahi-core/server.c +@@ -1309,10 +1309,13 @@ int avahi_server_set_host_name(AvahiServ + else + hn = avahi_normalize_name_strdup(host_name); + ++ if (!hn) ++ return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); ++ + h = hn; + if (!avahi_unescape_label((const char **)&hn, label, sizeof(label))) { + avahi_free(h); +- return AVAHI_ERR_INVALID_HOST_NAME; ++ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME); + } + + avahi_free(h); +@@ -1320,7 +1323,7 @@ int avahi_server_set_host_name(AvahiServ + h = label_escaped; + len = sizeof(label_escaped); + if (!avahi_escape_label(label, strlen(label), &h, &len)) +- return AVAHI_ERR_INVALID_HOST_NAME; ++ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME); + + if (avahi_domain_equal(s->host_name, label_escaped) && s->state != AVAHI_SERVER_COLLISION) + return avahi_server_set_errno(s, AVAHI_ERR_NO_CHANGE); +@@ -1330,7 +1333,7 @@ int avahi_server_set_host_name(AvahiServ + avahi_free(s->host_name); + s->host_name = avahi_strdup(label_escaped); + if (!s->host_name) +- return AVAHI_ERR_NO_MEMORY; ++ return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY); + + update_fqdn(s); + diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch new file mode 100644 index 0000000000..85dbded73b --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch @@ -0,0 +1,46 @@ +From b024ae5749f4aeba03478e6391687c3c9c8dee40 Mon Sep 17 00:00:00 2001 +From: Michal Sekletar <msekleta@redhat.com> +Date: Thu, 19 Oct 2023 17:36:44 +0200 +Subject: [PATCH] core: make sure there is rdata to process before parsing it + +Fixes #452 + +CVE-2023-38472 + +Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38472.patch?h=ubuntu/jammy-security +Upstream commit https://github.com/lathiat/avahi/commit/b024ae5749f4aeba03478e6391687c3c9c8dee40] +CVE: CVE-2023-38472 +Signed-off-by: Meenali Gupta <meenali.gupta@windriver.com> +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + avahi-client/client-test.c | 3 +++ + avahi-daemon/dbus-entry-group.c | 2 +- + 2 files changed, 4 insertions(+), 1 deletion(-) + +Index: avahi-0.8/avahi-client/client-test.c +=================================================================== +--- avahi-0.8.orig/avahi-client/client-test.c ++++ avahi-0.8/avahi-client/client-test.c +@@ -272,6 +272,9 @@ int main (AVAHI_GCC_UNUSED int argc, AVA + assert(error == AVAHI_ERR_INVALID_RECORD); + avahi_string_list_free(txt); + ++ error = avahi_entry_group_add_record (group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "TestX", 0x01, 0x10, 120, "", 0); ++ assert(error != AVAHI_OK); ++ + avahi_entry_group_commit (group); + + domain = avahi_domain_browser_new (avahi, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DOMAIN_BROWSER_BROWSE, 0, avahi_domain_browser_callback, (char*) "omghai3u"); +Index: avahi-0.8/avahi-daemon/dbus-entry-group.c +=================================================================== +--- avahi-0.8.orig/avahi-daemon/dbus-entry-group.c ++++ avahi-0.8/avahi-daemon/dbus-entry-group.c +@@ -340,7 +340,7 @@ DBusHandlerResult avahi_dbus_msg_entry_g + if (!(r = avahi_record_new_full (name, clazz, type, ttl))) + return avahi_dbus_respond_error(c, m, AVAHI_ERR_NO_MEMORY, NULL); + +- if (avahi_rdata_parse (r, rdata, size) < 0) { ++ if (!rdata || avahi_rdata_parse (r, rdata, size) < 0) { + avahi_record_unref (r); + return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_RDATA, NULL); + } diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38473.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38473.patch new file mode 100644 index 0000000000..707acb60fe --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38473.patch @@ -0,0 +1,110 @@ +From 88cbbc48d5efff9726694557ca6c3f698f3affe4 Mon Sep 17 00:00:00 2001 +From: Michal Sekletar <msekleta@redhat.com> +Date: Wed, 11 Oct 2023 17:45:44 +0200 +Subject: [PATCH] avahi: common: derive alternative host name from its + unescaped version + +Normalization of input makes sure we don't have to deal with special +cases like unescaped dot at the end of label. + +Fixes #451 #487 + +Upstream-Status: Backport [https://github.com/lathiat/avahi/commit/b448c9f771bada14ae8de175695a9729f8646797] +CVE: CVE-2023-38473 + +Signed-off-by: Meenali Gupta <meenali.gupta@windriver.com> +--- + avahi-common/alternative-test.c | 3 +++ + avahi-common/alternative.c | 27 +++++++++++++++++++-------- + 2 files changed, 22 insertions(+), 8 deletions(-) + +diff --git a/avahi-common/alternative-test.c b/avahi-common/alternative-test.c +index 9255435..681fc15 100644 +--- a/avahi-common/alternative-test.c ++++ b/avahi-common/alternative-test.c +@@ -31,6 +31,9 @@ int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) { + const char* const test_strings[] = { + "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", + "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXüüüüüüü", ++ ").", ++ "\\.", ++ "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\\\", + "gurke", + "-", + " #", +diff --git a/avahi-common/alternative.c b/avahi-common/alternative.c +index b3d39f0..a094e6d 100644 +--- a/avahi-common/alternative.c ++++ b/avahi-common/alternative.c +@@ -49,15 +49,20 @@ static void drop_incomplete_utf8(char *c) { + } + + char *avahi_alternative_host_name(const char *s) { ++ char label[AVAHI_LABEL_MAX], alternative[AVAHI_LABEL_MAX*4+1]; ++ char *alt, *r, *ret; + const char *e; +- char *r; ++ size_t len; + + assert(s); + + if (!avahi_is_valid_host_name(s)) + return NULL; + +- if ((e = strrchr(s, '-'))) { ++ if (!avahi_unescape_label(&s, label, sizeof(label))) ++ return NULL; ++ ++ if ((e = strrchr(label, '-'))) { + const char *p; + + e++; +@@ -74,19 +79,18 @@ char *avahi_alternative_host_name(const char *s) { + + if (e) { + char *c, *m; +- size_t l; + int n; + + n = atoi(e)+1; + if (!(m = avahi_strdup_printf("%i", n))) + return NULL; + +- l = e-s-1; ++ len = e-label-1; + +- if (l >= AVAHI_LABEL_MAX-1-strlen(m)-1) +- l = AVAHI_LABEL_MAX-1-strlen(m)-1; ++ if (len >= AVAHI_LABEL_MAX-1-strlen(m)-1) ++ len = AVAHI_LABEL_MAX-1-strlen(m)-1; + +- if (!(c = avahi_strndup(s, l))) { ++ if (!(c = avahi_strndup(label, len))) { + avahi_free(m); + return NULL; + } +@@ -100,7 +104,7 @@ char *avahi_alternative_host_name(const char *s) { + } else { + char *c; + +- if (!(c = avahi_strndup(s, AVAHI_LABEL_MAX-1-2))) ++ if (!(c = avahi_strndup(label, AVAHI_LABEL_MAX-1-2))) + return NULL; + + drop_incomplete_utf8(c); +@@ -109,6 +113,13 @@ char *avahi_alternative_host_name(const char *s) { + avahi_free(c); + } + ++ alt = alternative; ++ len = sizeof(alternative); ++ ret = avahi_escape_label(r, strlen(r), &alt, &len); ++ ++ avahi_free(r); ++ r = avahi_strdup(ret); ++ + assert(avahi_is_valid_host_name(r)); + + return r; +-- +2.40.0 diff --git a/meta/recipes-connectivity/avahi/files/handle-hup.patch b/meta/recipes-connectivity/avahi/files/handle-hup.patch new file mode 100644 index 0000000000..26632e5443 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/handle-hup.patch @@ -0,0 +1,41 @@ +CVE: CVE-2021-3468 +Upstream-Status: Submitted [https://github.com/lathiat/avahi/pull/330] +Signed-off-by: Ross Burton <ross.burton@arm.com> + +From 447affe29991ee99c6b9732fc5f2c1048a611d3b Mon Sep 17 00:00:00 2001 +From: Riccardo Schirone <sirmy15@gmail.com> +Date: Fri, 26 Mar 2021 11:50:24 +0100 +Subject: [PATCH] Avoid infinite-loop in avahi-daemon by handling HUP event in + client_work + +If a client fills the input buffer, client_work() disables the +AVAHI_WATCH_IN event, thus preventing the function from executing the +`read` syscall the next times it is called. However, if the client then +terminates the connection, the socket file descriptor receives a HUP +event, which is not handled, thus the kernel keeps marking the HUP event +as occurring. While iterating over the file descriptors that triggered +an event, the client file descriptor will keep having the HUP event and +the client_work() function is always called with AVAHI_WATCH_HUP but +without nothing being done, thus entering an infinite loop. + +See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=984938 +--- + avahi-daemon/simple-protocol.c | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/avahi-daemon/simple-protocol.c b/avahi-daemon/simple-protocol.c +index 3e0ebb11..6c0274d6 100644 +--- a/avahi-daemon/simple-protocol.c ++++ b/avahi-daemon/simple-protocol.c +@@ -424,6 +424,11 @@ static void client_work(AvahiWatch *watch, AVAHI_GCC_UNUSED int fd, AvahiWatchEv + } + } + ++ if (events & AVAHI_WATCH_HUP) { ++ client_free(c); ++ return; ++ } ++ + c->server->poll_api->watch_update( + watch, + (c->outbuf_length > 0 ? AVAHI_WATCH_OUT : 0) | diff --git a/meta/recipes-connectivity/avahi/files/initscript.patch b/meta/recipes-connectivity/avahi/files/initscript.patch index 193889eb5c..c856c3df04 100644 --- a/meta/recipes-connectivity/avahi/files/initscript.patch +++ b/meta/recipes-connectivity/avahi/files/initscript.patch @@ -1,10 +1,10 @@ Upstream-Status: Pending -diff --git a/initscript/debian/avahi-daemon.in b/initscript/debian/avahi-daemon.in -index 30a2c2f..b5848a8 100755 ---- a/initscript/debian/avahi-daemon.in -+++ b/initscript/debian/avahi-daemon.in -@@ -1,2 +1,14 @@ +Index: avahi-0.7/initscript/debian/avahi-daemon.in +=================================================================== +--- avahi-0.7.orig/initscript/debian/avahi-daemon.in ++++ avahi-0.7/initscript/debian/avahi-daemon.in +@@ -1,5 +1,17 @@ #!/bin/sh - +### BEGIN INIT INFO @@ -20,11 +20,14 @@ index 30a2c2f..b5848a8 100755 +# automatically +### END INIT INFO +# -diff --git a/initscript/debian/avahi-dnsconfd.in b/initscript/debian/avahi-dnsconfd.in -index ac34804..f95c340 100755 ---- a/initscript/debian/avahi-dnsconfd.in -+++ b/initscript/debian/avahi-dnsconfd.in -@@ -1,1 +1,14 @@ + # This file is part of avahi. + # + # avahi is free software; you can redistribute it and/or modify it +Index: avahi-0.7/initscript/debian/avahi-dnsconfd.in +=================================================================== +--- avahi-0.7.orig/initscript/debian/avahi-dnsconfd.in ++++ avahi-0.7/initscript/debian/avahi-dnsconfd.in +@@ -1,4 +1,17 @@ #!/bin/sh +### BEGIN INIT INFO +# Provides: avahi-dnsconfd @@ -39,3 +42,6 @@ index ac34804..f95c340 100755 +# automatically +### END INIT INFO +# + + # This file is part of avahi. + # diff --git a/meta/recipes-connectivity/avahi/files/invalid-service.patch b/meta/recipes-connectivity/avahi/files/invalid-service.patch new file mode 100644 index 0000000000..8f188aff2c --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/invalid-service.patch @@ -0,0 +1,29 @@ +From 46490e95151d415cd22f02565e530eb5efcef680 Mon Sep 17 00:00:00 2001 +From: Asger Hautop Drewsen <asger@princh.com> +Date: Mon, 9 Aug 2021 14:25:08 +0200 +Subject: [PATCH] Fix avahi-browse: Invalid service type + +Invalid service types will stop the browse from completing, or +in simple terms "my washing machine stops me from printing". + +Upstream-Status: Submitted [https://github.com/lathiat/avahi/pull/472] +Signed-off-by: Ross Burton <ross.burton@arm.com> +--- + avahi-core/browse-service.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/avahi-core/browse-service.c b/avahi-core/browse-service.c +index 63e0275a..ac3d2ecb 100644 +--- a/avahi-core/browse-service.c ++++ b/avahi-core/browse-service.c +@@ -103,7 +103,9 @@ AvahiSServiceBrowser *avahi_s_service_browser_prepare( + AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL); + AVAHI_CHECK_VALIDITY_RETURN_NULL(server, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME); + 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, avahi_is_valid_service_type_generic(service_type), AVAHI_ERR_INVALID_SERVICE_TYPE); ++ ++ if (!avahi_is_valid_service_type_generic(service_type)) ++ service_type = "_invalid._tcp"; + + if (!domain) + domain = server->domain_name; diff --git a/meta/recipes-connectivity/avahi/files/local-ping.patch b/meta/recipes-connectivity/avahi/files/local-ping.patch new file mode 100644 index 0000000000..29c192d296 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/local-ping.patch @@ -0,0 +1,153 @@ +CVE: CVE-2021-36217 +CVE: CVE-2021-3502 +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> + +From 9d31939e55280a733d930b15ac9e4dda4497680c Mon Sep 17 00:00:00 2001 +From: Tommi Rantala <tommi.t.rantala@nokia.com> +Date: Mon, 8 Feb 2021 11:04:43 +0200 +Subject: [PATCH] Fix NULL pointer crashes from #175 + +avahi-daemon is crashing when running "ping .local". +The crash is due to failing assertion from NULL pointer. +Add missing NULL pointer checks to fix it. + +Introduced in #175 - merge commit 8f75a045709a780c8cf92a6a21e9d35b593bdecd +--- + avahi-core/browse-dns-server.c | 5 ++++- + avahi-core/browse-domain.c | 5 ++++- + avahi-core/browse-service-type.c | 3 +++ + avahi-core/browse-service.c | 3 +++ + avahi-core/browse.c | 3 +++ + avahi-core/resolve-address.c | 5 ++++- + avahi-core/resolve-host-name.c | 5 ++++- + avahi-core/resolve-service.c | 5 ++++- + 8 files changed, 29 insertions(+), 5 deletions(-) + +diff --git a/avahi-core/browse-dns-server.c b/avahi-core/browse-dns-server.c +index 049752e9..c2d914fa 100644 +--- a/avahi-core/browse-dns-server.c ++++ b/avahi-core/browse-dns-server.c +@@ -343,7 +343,10 @@ AvahiSDNSServerBrowser *avahi_s_dns_server_browser_new( + AvahiSDNSServerBrowser* b; + + b = avahi_s_dns_server_browser_prepare(server, interface, protocol, domain, type, aprotocol, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_dns_server_browser_start(b); + + return b; +-} +\ No newline at end of file ++} +diff --git a/avahi-core/browse-domain.c b/avahi-core/browse-domain.c +index f145d56a..06fa70c0 100644 +--- a/avahi-core/browse-domain.c ++++ b/avahi-core/browse-domain.c +@@ -253,7 +253,10 @@ AvahiSDomainBrowser *avahi_s_domain_browser_new( + AvahiSDomainBrowser *b; + + b = avahi_s_domain_browser_prepare(server, interface, protocol, domain, type, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_domain_browser_start(b); + + return b; +-} +\ No newline at end of file ++} +diff --git a/avahi-core/browse-service-type.c b/avahi-core/browse-service-type.c +index fdd22dcd..b1fc7af8 100644 +--- a/avahi-core/browse-service-type.c ++++ b/avahi-core/browse-service-type.c +@@ -171,6 +171,9 @@ AvahiSServiceTypeBrowser *avahi_s_service_type_browser_new( + AvahiSServiceTypeBrowser *b; + + b = avahi_s_service_type_browser_prepare(server, interface, protocol, domain, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_service_type_browser_start(b); + + return b; +diff --git a/avahi-core/browse-service.c b/avahi-core/browse-service.c +index 5531360c..63e0275a 100644 +--- a/avahi-core/browse-service.c ++++ b/avahi-core/browse-service.c +@@ -184,6 +184,9 @@ AvahiSServiceBrowser *avahi_s_service_browser_new( + AvahiSServiceBrowser *b; + + b = avahi_s_service_browser_prepare(server, interface, protocol, service_type, domain, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_service_browser_start(b); + + return b; +diff --git a/avahi-core/browse.c b/avahi-core/browse.c +index 2941e579..e8a915e9 100644 +--- a/avahi-core/browse.c ++++ b/avahi-core/browse.c +@@ -634,6 +634,9 @@ AvahiSRecordBrowser *avahi_s_record_browser_new( + AvahiSRecordBrowser *b; + + b = avahi_s_record_browser_prepare(server, interface, protocol, key, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_record_browser_start_query(b); + + return b; +diff --git a/avahi-core/resolve-address.c b/avahi-core/resolve-address.c +index ac0b29b1..e61dd242 100644 +--- a/avahi-core/resolve-address.c ++++ b/avahi-core/resolve-address.c +@@ -286,7 +286,10 @@ AvahiSAddressResolver *avahi_s_address_resolver_new( + AvahiSAddressResolver *b; + + b = avahi_s_address_resolver_prepare(server, interface, protocol, address, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_address_resolver_start(b); + + return b; +-} +\ No newline at end of file ++} +diff --git a/avahi-core/resolve-host-name.c b/avahi-core/resolve-host-name.c +index 808b0e72..4e8e5973 100644 +--- a/avahi-core/resolve-host-name.c ++++ b/avahi-core/resolve-host-name.c +@@ -318,7 +318,10 @@ AvahiSHostNameResolver *avahi_s_host_name_resolver_new( + AvahiSHostNameResolver *b; + + b = avahi_s_host_name_resolver_prepare(server, interface, protocol, host_name, aprotocol, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_host_name_resolver_start(b); + + return b; +-} +\ No newline at end of file ++} +diff --git a/avahi-core/resolve-service.c b/avahi-core/resolve-service.c +index 66bf3cae..43771763 100644 +--- a/avahi-core/resolve-service.c ++++ b/avahi-core/resolve-service.c +@@ -519,7 +519,10 @@ AvahiSServiceResolver *avahi_s_service_resolver_new( + AvahiSServiceResolver *b; + + b = avahi_s_service_resolver_prepare(server, interface, protocol, name, type, domain, aprotocol, flags, callback, userdata); ++ if (!b) ++ return NULL; ++ + avahi_s_service_resolver_start(b); + + return b; +-} +\ No newline at end of file ++} |