new file mode 100644
@@ -0,0 +1,45 @@
+From bf6a303883bde40cf96b960c8574cddd89e71701 Mon Sep 17 00:00:00 2001
+From: Jon Shallow <supjps-libcoap@jpshallow.com>
+Date: Thu, 25 Jan 2024 18:03:17 +0000
+Subject: [PATCH] coap_oscore.c: Fix parsing OSCORE configuration information
+
+A vulnerability was found in obgm libcoap 4.3.4. It has been rated as critical.
+Affected by this issue is the function get_split_entry of the file src/coap_oscore.c of the component Configuration File Handler.
+The manipulation leads to stack-based buffer overflow.
+
+CVE: CVE-2024-0962
+
+Upstream-Status: Backport [https://github.com/obgm/libcoap/pull/1311]
+
+Signed-off-by: alperak <alperyasinak1@gmail.com>
+---
+ src/coap_oscore.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/src/coap_oscore.c b/src/coap_oscore.c
+index 83f785c92..e0fb22947 100644
+--- a/src/coap_oscore.c
++++ b/src/coap_oscore.c
+@@ -1678,11 +1678,12 @@ get_split_entry(const char **start,
+ oscore_value_t *value) {
+ const char *begin = *start;
+ const char *end;
++ const char *kend;
+ const char *split;
+ size_t i;
+
+ retry:
+- end = memchr(begin, '\n', size);
++ kend = end = memchr(begin, '\n', size);
+ if (end == NULL)
+ return 0;
+
+@@ -1693,7 +1694,7 @@ get_split_entry(const char **start,
+
+ if (begin[0] == '#' || (end - begin) == 0) {
+ /* Skip comment / blank line */
+- size -= end - begin + 1;
++ size -= kend - begin + 1;
+ begin = *start;
+ goto retry;
+ }
@@ -9,6 +9,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=1978dbc41673ab1c20e64b287c8317bc"
SRC_URI = "git://github.com/obgm/libcoap.git;branch=main;protocol=https \
file://run-ptest \
+ file://CVE-2024-0962.patch \
"
SRCREV = "5fd2f89ef068214130e5d60b7087ef48711fa615"
CVE-2024-0962: A vulnerability was found in obgm libcoap 4.3.4. It has been rated as critical. Affected by this issue is the function get_split_entry of the file src/coap_oscore.c of the component Configuration File Handler. The manipulation leads to stack-based buffer overflow. Upstream-Status: Backport [https://github.com/obgm/libcoap/pull/1311] WARNING: libcoap-4.3.4-r0 do_cve_check: Found unpatched CVE (CVE-2024-0962) This vulnerability is only exist in 4.3.4. Signed-off-by: alperak <alperyasinak1@gmail.com> --- .../libcoap/libcoap/CVE-2024-0962.patch | 45 +++++++++++++++++++ .../recipes-devtools/libcoap/libcoap_4.3.4.bb | 1 + 2 files changed, 46 insertions(+) create mode 100644 meta-networking/recipes-devtools/libcoap/libcoap/CVE-2024-0962.patch