busybox: patch CVE-2024-58251

Pick patch applied by Debian [1].

I did not find any reference on busybox mailing list that this patch was
submitted. Submitting patch for someone else would be inappropriate,
and busybox is currently known to be very inactive, hence the unwanted
Pending Upstream-Status status.
Also note that the related busybox bugreport [2] is currently not
public, so it is possible that it was submitted there.

[1] https://sources.debian.org/patches/busybox/1:1.37.0-10.1/netstat-sanitize-argv0-for-p-CVE-2024-58251.patch/
[2] https://bugs.busybox.net/show_bug.cgi?id=15922

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-core/busybox/busybox/CVE-2024-58251.patch b/meta/recipes-core/busybox/busybox/CVE-2024-58251.patch
new file mode 100644 (file)
index 0000000..713d345
--- /dev/null
+++ b/meta/recipes-core/busybox/busybox/CVE-2024-58251.patch
@@ -0,0 +1,51 @@
+From: Valery Ushakov <valery.ushakov@bell-sw.com>
+Date: Thu, 21 Aug 2025 12:31:53 +0000
+Subject: netstat: CVE-2024-58251 - sanitize argv0 for -p
+Bug-Debian: https://bugs.debian.org/1104009
+
+Signed-off-by: Valery Ushakov <valery.ushakov@bell-sw.com>
+
+CVE: CVE-2024-58251
+Upstream-Status: Pending
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ networking/netstat.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/networking/netstat.c b/networking/netstat.c
+index 807800a62..d979f6079 100644
+--- a/networking/netstat.c
++++ b/networking/netstat.c
+@@ -41,6 +41,7 @@
+ 
+ #include "libbb.h"
+ #include "inet_common.h"
++#include "unicode.h"
+ 
+ //usage:#define netstat_trivial_usage
+ //usage:       "[-"IF_ROUTE("r")"al] [-tuwx] [-en"IF_FEATURE_NETSTAT_WIDE("W")IF_FEATURE_NETSTAT_PRG("p")"]"
+@@ -314,9 +315,12 @@ static int FAST_FUNC dir_act(struct recursive_state *state,
+               return FALSE;
+       cmdline_buf[n] = '\0';
+ 
++      /* don't write process-controlled argv[0] to the user's terminal as-is */
++      const char *argv0base = printable_string(bb_basename(cmdline_buf));
++
+       /* go through all files in /proc/PID/fd and check whether they are sockets */
+       strcpy(proc_pid_fname + len - (sizeof("cmdline")-1), "fd");
+-      pid_slash_progname = concat_path_file(pid, bb_basename(cmdline_buf)); /* "PID/argv0" */
++      pid_slash_progname = concat_path_file(pid, argv0base); /* "PID/argv0" */
+       n = recursive_action(proc_pid_fname,
+                       ACTION_RECURSE | ACTION_QUIET,
+                       add_to_prg_cache_if_socket,
+@@ -686,6 +690,7 @@ int netstat_main(int argc UNUSED_PARAM, char **argv)
+       unsigned opt;
+ 
+       INIT_G();
++      init_unicode();
+ 
+       /* Option string must match NETSTAT_xxx constants */
+       opt = getopt32(argv, NETSTAT_OPTS);
+-- 
+2.34.1
+

diff --git a/meta/recipes-core/busybox/busybox_1.37.0.bb b/meta/recipes-core/busybox/busybox_1.37.0.bb
index 61ff602be6f3549647496a992f68e7f2b721ee87..479089968437f8d6e60c5f75f422d2137f02f868 100644 (file)
--- a/meta/recipes-core/busybox/busybox_1.37.0.bb
+++ b/meta/recipes-core/busybox/busybox_1.37.0.bb
@@ -63,6 +63,7 @@ SRC_URI = "https://busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball \
            file://0001-busybox-fix-printf-ptest-failure-with-glibc-2.43.patch \
            file://0001-tar-strip-unsafe-hardlink-components-GNU-tar-does-th.patch \
            file://0002-tar-only-strip-unsafe-components-from-hardlinks-not-.patch \
+           file://CVE-2024-58251.patch \
            "
 SRC_URI:append:libc-musl = " file://musl.cfg"
 SRC_URI:append:x86-64 = " file://sha_accel.cfg"