openjpeg2/SOURCES/openjpeg2-CVE-2021-3575.patch
2021-11-09 10:17:48 +00:00

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Diff

From 409907d89878222cf9dea80f0add8f73e9383834 Mon Sep 17 00:00:00 2001
From: Mehdi Sabwat <mehdisabwat@gmail.com>
Date: Fri, 7 May 2021 01:50:37 +0200
Subject: [PATCH] fix heap buffer overflow #1347
---
src/bin/common/color.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/bin/common/color.c b/src/bin/common/color.c
index 27f15f1..935fa44 100644
--- a/src/bin/common/color.c
+++ b/src/bin/common/color.c
@@ -368,12 +368,15 @@ static void sycc420_to_rgb(opj_image_t *img)
sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
- ++y;
+ if (*y != img->comps[0].data[loopmaxh])
+ ++y;
++r;
++g;
++b;
- ++cb;
- ++cr;
+ if (*cb != img->comps[1].data[loopmaxh])
+ ++cb;
+ if (*cr != img->comps[2].data[loopmaxh])
+ ++cr;
}
if (j < maxw) {
sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
--
2.31.1