diff options
Diffstat (limited to 'meta/recipes-connectivity/avahi/files/CVE-2023-38469-1.patch')
-rw-r--r-- | meta/recipes-connectivity/avahi/files/CVE-2023-38469-1.patch | 48 |
1 files changed, 48 insertions, 0 deletions
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..12dad9ef6f --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38469-1.patch @@ -0,0 +1,48 @@ +From a337a1ba7d15853fb56deef1f464529af6e3a1cf Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin <evvers@ya.ru> +Date: Mon, 23 Oct 2023 20:29:31 +0000 +Subject: [PATCH] core: reject overly long TXT resource records + +Closes https://github.com/lathiat/avahi/issues/455 + +CVE-2023-38469 + +Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38469-1.patch?h=ubuntu/focal-security +Upstream commit https://github.com/lathiat/avahi/commit/a337a1ba7d15853fb56deef1f464529af6e3a1cf] +CVE: CVE-2023-38469 +Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> +--- + avahi-core/rr.c | 9 ++++++++- + 1 file changed, 8 insertions(+), 1 deletion(-) + +Index: avahi-0.7/avahi-core/rr.c +=================================================================== +--- avahi-0.7.orig/avahi-core/rr.c ++++ avahi-0.7/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; + } + } |