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912aaf2a87
libtiff: integer overflow in tiffcp.c References: https://security-tracker.debian.org/tracker/CVE-2023-40745 https://gitlab.com/libtiff/libtiff/-/issues/591 https://bugzilla.redhat.com/show_bug.cgi?id=2235265 (From OE-Core rev: 3340e024ae8676081488f23a0678c28c23ab0b42) Signed-off-by: Yogita Urade <yogita.urade@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit c3d4fbeb51278a04a6800c894c681733ad2259ca) Signed-off-by: Steve Sakoman <steve@sakoman.com>
36 lines
1.0 KiB
Diff
36 lines
1.0 KiB
Diff
From 4fc16f649fa2875d5c388cf2edc295510a247ee5 Mon Sep 17 00:00:00 2001
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From: Arie Haenel <arie.haenel@jct.ac.il>
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Date: Thu, 14 Sep 2023 04:31:35 +0000
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Subject: [PATCH] tiffcp: fix memory corruption (overflow) on hostile images
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(fixes #591)
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CVE: CVE-2023-40745
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Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/4fc16f649fa2875d5c388cf2edc295510a247ee5]
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Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
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---
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tools/tiffcp.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/tools/tiffcp.c b/tools/tiffcp.c
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index 3b2d1dd..57fa6e8 100644
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--- a/tools/tiffcp.c
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+++ b/tools/tiffcp.c
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@@ -1754,6 +1754,13 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
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"Width * Samples/Pixel)");
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return 0;
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}
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+
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+ if ( (imagew - tilew * spp) > INT_MAX ){
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+ TIFFError(TIFFFileName(in),
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+ "Error, image raster scan line size is too large");
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+ return 0;
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+ }
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+
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iskew = imagew - tilew * spp;
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tilebuf = limitMalloc(tilesize);
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if (tilebuf == 0)
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--
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2.35.5
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