From 716693ccccb82ad398ff7470c360d047baeaec07 Mon Sep 17 00:00:00 2001 From: Vijay Anusuri Date: Wed, 22 Nov 2023 13:29:23 +0530 Subject: avahi: backport Debian patches to fix multiple CVE's import patches from ubuntu to fix CVE-2023-1981 CVE-2023-38469 CVE-2023-38470 CVE-2023-38471 CVE-2023-38472 CVE-2023-38473 Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches?h=ubuntu/focal-security Upstream commit https://github.com/lathiat/avahi/commit/a2696da2f2c50ac43b6c4903f72290d5c3fa9f6f & https://github.com/lathiat/avahi/commit/a337a1ba7d15853fb56deef1f464529af6e3a1cf & https://github.com/lathiat/avahi/commit/c6cab87df290448a63323c8ca759baa516166237 & https://github.com/lathiat/avahi/commit/94cb6489114636940ac683515417990b55b5d66c & https://github.com/lathiat/avahi/commit/20dec84b2480821704258bc908e7b2bd2e883b24 & https://github.com/lathiat/avahi/commit/894f085f402e023a98cbb6f5a3d117bd88d93b09 & https://github.com/lathiat/avahi/commit/b675f70739f404342f7f78635d6e2dcd85a13460 & https://github.com/lathiat/avahi/commit/b024ae5749f4aeba03478e6391687c3c9c8dee40 & https://github.com/lathiat/avahi/commit/b448c9f771bada14ae8de175695a9729f8646797] (From OE-Core rev: 4771e335cd4d95e734d7f07a718319f4543ce2f1) Signed-off-by: Vijay Anusuri Signed-off-by: Steve Sakoman --- .../avahi/files/CVE-2023-38470-2.patch | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 meta/recipes-connectivity/avahi/files/CVE-2023-38470-2.patch (limited to 'meta/recipes-connectivity/avahi/files/CVE-2023-38470-2.patch') 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..403ed6fd6a --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38470-2.patch @@ -0,0 +1,53 @@ +From 20dec84b2480821704258bc908e7b2bd2e883b24 Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin +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-2023-38471-2.patch?h=ubuntu/focal-security +Upstream commit https://github.com/lathiat/avahi/commit/20dec84b2480821704258bc908e7b2bd2e883b24] +CVE: CVE-2023-38470 #Follow-up patch +Signed-off-by: Vijay Anusuri +--- + avahi-common/domain.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +Index: avahi-0.7/avahi-common/domain.c +=================================================================== +--- avahi-0.7.orig/avahi-common/domain.c ++++ avahi-0.7/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; -- cgit v1.2.3-54-g00ecf