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[scarthgap] libsoup-3.4.4: Fix CVE-2025-4969

Message ID 20250528054110.43326-1-hprajapati@mvista.com
State Under Review
Delegated to: Steve Sakoman
Headers show
Series [scarthgap] libsoup-3.4.4: Fix CVE-2025-4969 | expand

Commit Message

Hitendra Prajapati May 28, 2025, 5:41 a.m. UTC 
Upstream-Status: Backport from https://gitlab.gnome.org/GNOME/libsoup/-/commit/07b94e27afafebf31ef3cd868866a1e383750086

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
---
 .../libsoup/libsoup-3.4.4/CVE-2025-4969.patch | 76 +++++++++++++++++++
 meta/recipes-support/libsoup/libsoup_3.4.4.bb |  1 +
 2 files changed, 77 insertions(+)
 create mode 100644 meta/recipes-support/libsoup/libsoup-3.4.4/CVE-2025-4969.patch
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Patch

diff --git a/meta/recipes-support/libsoup/libsoup-3.4.4/CVE-2025-4969.patch b/meta/recipes-support/libsoup/libsoup-3.4.4/CVE-2025-4969.patch
new file mode 100644
index 0000000000..70c5fd5593
--- /dev/null
+++ b/meta/recipes-support/libsoup/libsoup-3.4.4/CVE-2025-4969.patch
@@ -0,0 +1,76 @@ 
+From 07b94e27afafebf31ef3cd868866a1e383750086 Mon Sep 17 00:00:00 2001
+From: Milan Crha <mcrha@redhat.com>
+Date: Mon, 19 May 2025 17:48:27 +0200
+Subject: [PATCH] soup-multipart: Verify array bounds before accessing its
+ members
+
+The boundary could be at a place which, calculated, pointed
+before the beginning of the array. Check the bounds, to avoid
+read out of the array bounds.
+
+Closes https://gitlab.gnome.org/GNOME/libsoup/-/issues/447
+
+Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libsoup/-/commit/07b94e27afafebf31ef3cd868866a1e383750086]
+CVE: CVE-2025-4969
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ libsoup/soup-multipart.c |  2 +-
+ tests/multipart-test.c   | 22 ++++++++++++++++++++++
+ 2 files changed, 23 insertions(+), 1 deletion(-)
+
+diff --git a/libsoup/soup-multipart.c b/libsoup/soup-multipart.c
+index 102ce37..e1c442e 100644
+--- a/libsoup/soup-multipart.c
++++ b/libsoup/soup-multipart.c
+@@ -104,7 +104,7 @@ find_boundary (const char *start, const char *end,
+ 			continue;
+ 
+ 		/* Check that it's at start of line */
+-		if (!(b == start || (b[-1] == '\n' && b[-2] == '\r')))
++		if (!(b == start || (b - start >= 2 && b[-1] == '\n' && b[-2] == '\r')))
+ 			continue;
+ 
+ 		/* Check for "--" or "\r\n" after boundary */
+diff --git a/tests/multipart-test.c b/tests/multipart-test.c
+index ab5f41c..84852e2 100644
+--- a/tests/multipart-test.c
++++ b/tests/multipart-test.c
+@@ -527,6 +527,27 @@ test_multipart_bounds_bad (void)
+ 	g_bytes_unref (bytes);
+ }
+ 
++static void
++test_multipart_bounds_bad_2 (void)
++{
++	SoupMultipart *multipart;
++	SoupMessageHeaders *headers;
++	GBytes *bytes;
++	const char *raw_data = "\n--123\r\nline\r\n--123--\r";
++
++	headers = soup_message_headers_new (SOUP_MESSAGE_HEADERS_MULTIPART);
++	soup_message_headers_append (headers, "Content-Type", "multipart/mixed; boundary=\"123\"");
++
++	bytes = g_bytes_new (raw_data, strlen (raw_data));
++
++	multipart = soup_multipart_new_from_message (headers, bytes);
++	g_assert_nonnull (multipart);
++
++	soup_multipart_free (multipart);
++	soup_message_headers_unref (headers);
++	g_bytes_unref (bytes);
++}
++
+ int
+ main (int argc, char **argv)
+ {
+@@ -556,6 +577,7 @@ main (int argc, char **argv)
+ 	g_test_add_data_func ("/multipart/async-small-reads", GINT_TO_POINTER (ASYNC_MULTIPART_SMALL_READS), test_multipart);
+ 	g_test_add_func ("/multipart/bounds-good", test_multipart_bounds_good);
+ 	g_test_add_func ("/multipart/bounds-bad", test_multipart_bounds_bad);
++	g_test_add_func ("/multipart/bounds-bad-2", test_multipart_bounds_bad_2);
+ 
+ 	ret = g_test_run ();
+ 
+-- 
+2.49.0
+
diff --git a/meta/recipes-support/libsoup/libsoup_3.4.4.bb b/meta/recipes-support/libsoup/libsoup_3.4.4.bb
index d3a0840044..21a1bbe6cd 100644
--- a/meta/recipes-support/libsoup/libsoup_3.4.4.bb
+++ b/meta/recipes-support/libsoup/libsoup_3.4.4.bb
@@ -31,6 +31,7 @@  SRC_URI = "${GNOME_MIRROR}/libsoup/${SHRT_VER}/libsoup-${PV}.tar.xz \
            file://CVE-2025-46420.patch \
            file://CVE-2025-32914.patch \
            file://CVE-2025-4476.patch \
+           file://CVE-2025-4969.patch \
           "
 SRC_URI[sha256sum] = "291c67725f36ed90ea43efff25064b69c5a2d1981488477c05c481a3b4b0c5aa"