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42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From dfdc9b3cc73e6fe88cc12792ba00e14642572339 Mon Sep 17 00:00:00 2001
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From: Milan Crha <mcrha@redhat.com>
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Date: Thu, 15 May 2025 17:49:11 +0200
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Subject: [PATCH] soup-multipart: Verify boundary limits for multipart body
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It could happen that the boundary started at a place which resulted into
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a negative number, which in an unsigned integer is a very large value.
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Check the body size is not a negative value before setting it.
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Closes https://gitlab.gnome.org/GNOME/libsoup/-/issues/449
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Part-of: <https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/463>
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CVE: CVE-2025-4948
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Upstream-Status: Backport
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[https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/463/diffs?commit_id=f2f28afe0b3b2b3009ab67d6874457ec6bac70c0]
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Upstream: https://git.openembedded.org/meta-openembedded/tree/meta-oe/recipes-support/libsoup/libsoup-2.4/CVE-2025-4948.patch
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Signed-off-by: Changqing Li <changqing.li@windriver.com>
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Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
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---
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libsoup/soup-multipart.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libsoup/soup-multipart.c b/libsoup/soup-multipart.c
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index dd93973..ce2fc10 100644
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--- a/libsoup/soup-multipart.c
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+++ b/libsoup/soup-multipart.c
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@@ -214,7 +214,7 @@ soup_multipart_new_from_message (SoupMessageHeaders *headers,
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*/
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part_body = soup_buffer_new_subbuffer (flattened,
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split - flattened->data,
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- end - 2 - split);
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+ end - 2 >= split ? end - 2 - split : 0);
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g_ptr_array_add (multipart->bodies, part_body);
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start = end;
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--
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2.34.1
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