libsoup-2.4: fix CVE-2025-32911

CVE-2025-32911:
A use-after-free type vulnerability was found in libsoup, in the
soup_message_headers_get_content_disposition() function. This flaw
allows a malicious HTTP client to cause memory corruption in the libsoup
server.

Backport patches to fix it

[1] https://nvd.nist.gov/vuln/detail/CVE-2025-32911
[2] https://gitlab.gnome.org/GNOME/libsoup/-/issues/433

(From OE-Core rev: 839d93bbb1ca7a51b659b8cb9def9b354a99518f)

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 76 insertions, 1 deletions

diff --git a/meta/recipes-support/libsoup/libsoup-2.4/0001-CVE-2025-32911.patch b/meta/recipes-support/libsoup/libsoup-2.4/0001-CVE-2025-32911.patch
new file mode 100644
index 0000000000..9ef0643837
--- /dev/null
+++ b/meta/recipes-support/libsoup/libsoup-2.4/0001-CVE-2025-32911.patch
@@ -0,0 +1,74 @@
+From 52c5859b82fe79f2c32d883e048d218e0d7f2182 Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Wed, 30 Apr 2025 14:59:55 +0800
+Subject: [PATCH] CVE-2025-32911
+
+CVE: CVE-2025-32911
+Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/422/commits]
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+---
+ libsoup/soup-message-headers.c | 13 +++++++++----
+ tests/header-parsing-test.c    | 15 +++++++++++++++
+ 2 files changed, 24 insertions(+), 4 deletions(-)
+
+diff --git a/libsoup/soup-message-headers.c b/libsoup/soup-message-headers.c
+index 39ad14a..78b2455 100644
+--- a/libsoup/soup-message-headers.c
++++ b/libsoup/soup-message-headers.c
+@@ -1454,10 +1454,15 @@ soup_message_headers_get_content_disposition (SoupMessageHeaders  *hdrs,
+         */
+        if (params && g_hash_table_lookup_extended (*params, "filename",
+                                                    &orig_key, &orig_value)) {
+-               char *filename = strrchr (orig_value, '/');
+-
+-               if (filename)
+-                       g_hash_table_insert (*params, g_strdup (orig_key), filename + 1);
++                if (orig_value) {
++                        char *filename = strrchr (orig_value, '/');
++
++                        if (filename)
++                                g_hash_table_insert (*params, g_strdup (orig_key), g_strdup(filename + 1));
++                } else {
++                        /* filename with no value isn't valid. */
++                        g_hash_table_remove (*params, "filename");
++                }
+        }
+        return TRUE;
+ }
+diff --git a/tests/header-parsing-test.c b/tests/header-parsing-test.c
+index 946f118..752196e 100644
+--- a/tests/header-parsing-test.c
++++ b/tests/header-parsing-test.c
+@@ -1034,6 +1034,7 @@ do_param_list_tests (void)
+ #define RFC5987_TEST_HEADER_FALLBACK "attachment; filename*=Unknown''t%FF%FF%FFst.txt; filename=\"test.txt\""
+ #define RFC5987_TEST_HEADER_NO_TYPE  "filename=\"test.txt\""
+ #define RFC5987_TEST_HEADER_NO_TYPE_2  "filename=\"test.txt\"; foo=bar"
++#define RFC5987_TEST_HEADER_EMPTY_FILENAME ";filename"
+ 
+ static void
+ do_content_disposition_tests (void)
+@@ -1133,6 +1134,20 @@ do_content_disposition_tests (void)
+        g_assert_cmpstr (filename, ==, RFC5987_TEST_FALLBACK_FILENAME);
+         parameter2 = g_hash_table_lookup (params, "foo");
+         g_assert_cmpstr (parameter2, ==, "bar");
++       g_hash_table_destroy (params);
++
++        /* Empty filename */
++       soup_message_headers_clear (hdrs);
++       soup_message_headers_append (hdrs, "Content-Disposition",
++                                                                RFC5987_TEST_HEADER_EMPTY_FILENAME);
++       if (!soup_message_headers_get_content_disposition (hdrs,
++                                                                                                          &disposition,
++                                                                                                          &params)) {
++                       soup_test_assert (FALSE, "empty filename decoding FAILED");
++                       return;
++       }
++       g_free (disposition);
++       g_assert_false (g_hash_table_contains (params, "filename"));
+        g_hash_table_destroy (params);
+ 
+        soup_message_headers_free (hdrs);
+-- 
+2.34.1
+
diff --git a/meta/recipes-support/libsoup/libsoup-2.4_2.74.3.bb b/meta/recipes-support/libsoup/libsoup-2.4_2.74.3.bb
index ee20530b64..25e0d7dcbc 100644
--- a/meta/recipes-support/libsoup/libsoup-2.4_2.74.3.bb
+++ b/meta/recipes-support/libsoup/libsoup-2.4_2.74.3.bb
@@ -12,7 +12,8 @@ DEPENDS = "glib-2.0 glib-2.0-native libxml2 sqlite3 libpsl"
 SHRT_VER = "${@d.getVar('PV').split('.')[0]}.${@d.getVar('PV').split('.')[1]}"
 
 SRC_URI = "${GNOME_MIRROR}/libsoup/${SHRT_VER}/libsoup-${PV}.tar.xz \
-           file://0001-Fix-build-with-libxml2-2.12.0-and-clang-17.patch"
+           file://0001-Fix-build-with-libxml2-2.12.0-and-clang-17.patch \
+           file://0001-CVE-2025-32911.patch"
 SRC_URI[sha256sum] = "e4b77c41cfc4c8c5a035fcdc320c7bc6cfb75ef7c5a034153df1413fa1d92f13"
 
 CVE_PRODUCT = "libsoup"