tcpreplay: Fix CVE-2023-4256

Add patch to fix tcpreplay CVE-2023-4256
dlt_jnpr_ether_cleanup: check config before cleanup
Links:
appneta/tcpreplay#851
appneta/tcpreplay#813 (comment)

Signed-off-by: Poonam Jadhav <[email protected]>
Signed-off-by: Armin Kuster <[email protected]>

meta-networking/recipes-support/tcpreplay/tcpreplay/CVE-2023-4256.patch

@@ -0,0 +1,27 @@
+From 62bc10d4f1d2c9e2833ef2898fb0170e9300a9dd Mon Sep 17 00:00:00 2001
+From: Marsman1996 <[email protected]>
+Date: Tue, 2 Apr 2024 17:29:21 +0800
+Subject: [PATCH] dlt_jnpr_ether_cleanup: check config before cleanup
+
+CVE: CVE-2023-4256
+Upstream-Status: Backport [https://github.com/appneta/tcpreplay/pull/851]
+Signed-off-by: Poonam Jadhav <[email protected]>
+---
+ src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c b/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c
+index c53ec297..9642a2c2 100644
+--- a/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c
++++ b/src/tcpedit/plugins/dlt_jnpr_ether/jnpr_ether.c
+@@ -164,8 +164,9 @@ dlt_jnpr_ether_cleanup(tcpeditdlt_t *ctx)
+         jnpr_ether_config_t *config;
+
+         config = (jnpr_ether_config_t *)ctx->encoder->config;
+-        if (config->subctx != NULL)
++        if (config != NULL && config->subctx != NULL) {
+             tcpedit_dlt_cleanup(config->subctx);
++        }
+         safe_free(plugin->config);
+         plugin->config = NULL;
+         plugin->config_size = 0;

meta-networking/recipes-support/tcpreplay/tcpreplay_4.4.4.bb

@@ -7,7 +7,9 @@ SECTION = "net"
 LICENSE = "GPL-3.0-only"
 LIC_FILES_CHKSUM = "file://docs/LICENSE;md5=10f0474a2f0e5dccfca20f69d6598ad8"
 
-SRC_URI = "https://github.com/appneta/tcpreplay/releases/download/v${PV}/tcpreplay-${PV}.tar.gz"
+SRC_URI = "https://github.com/appneta/tcpreplay/releases/download/v${PV}/tcpreplay-${PV}.tar.gz \
+           file://CVE-2023-4256.patch \
+"
 
 SRC_URI[sha256sum] = "44f18fb6d3470ecaf77a51b901a119dae16da5be4d4140ffbb2785e37ad6d4bf"