diff --git a/backport-CVE-2021-3575.patch b/backport-CVE-2021-3575.patch
index 5554731..e2c7a55 100644
--- a/backport-CVE-2021-3575.patch
+++ b/backport-CVE-2021-3575.patch
@@ -1,35 +1,43 @@
-From f4cb033a340b55dbc576453c4b6a967fec5cbbda 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
-
-Conflict:NA
-Reference:https://github.com/uclouvain/openjpeg/commit/f4cb033a340b55dbc576453c4b6a967fec5cbbda
+From 7bd884f8750892de4f50bf4642fcfbe7011c6bdf Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Sun, 18 Feb 2024 17:02:25 +0100
+Subject: [PATCH] opj_decompress: fix off-by-one read heap-buffer-overflow in
+ sycc420_to_rgb() when x0 and y0 are odd (CVE-2021-3575, fixes #1347)
+
+Reference:https://github.com/uclouvain/openjpeg/commit/7bd884f8750892de4f50bf4642fcfbe7011c6bdf
+Conflict:NA
 
 ---
- src/bin/common/color.c | 9 ++++++---
- 1 file changed, 6 insertions(+), 3 deletions(-)
+ src/bin/common/color.c | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
 
 diff --git a/src/bin/common/color.c b/src/bin/common/color.c
-index 27f15f137..935fa44eb 100644
+index 27f15f137..ae5d648da 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)
+@@ -358,7 +358,15 @@ static void sycc420_to_rgb(opj_image_t *img)
+     if (i < loopmaxh) {
+         size_t j;
  
+-        for (j = 0U; j < (maxw & ~(size_t)1U); j += 2U) {
++        if (offx > 0U) {
++            sycc_to_rgb(offset, upb, *y, 0, 0, r, g, b);
++            ++y;
++            ++r;
++            ++g;
++            ++b;
++        }
++
++        for (j = 0U; j < (loopmaxw & ~(size_t)1U); j += 2U) {
              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;
+             ++y;
+@@ -375,7 +383,7 @@ static void sycc420_to_rgb(opj_image_t *img)
+             ++cb;
+             ++cr;
          }
-         if (j < maxw) {
+-        if (j < maxw) {
++        if (j < loopmaxw) {
              sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
+         }
+     }
diff --git a/openjpeg2.spec b/openjpeg2.spec
index 8cca648..616d9c8 100644
--- a/openjpeg2.spec
+++ b/openjpeg2.spec
@@ -1,6 +1,6 @@
 Name:           openjpeg2
 Version:        2.3.1
-Release:        12
+Release:        13
 Summary:        C-Library for JPEG 2000
 License:        BSD and MIT
 URL:            https://github.com/uclouvain/openjpeg
@@ -103,6 +103,9 @@ mv %{buildroot}%{_mandir}/man1/opj_dump.1 %{buildroot}%{_mandir}/man1/opj2_dump.
 %{_mandir}/man3/*.3*
 
 %changelog
+* Tue Oct 29 2024 zhangpan <zhangpan103@h-partners.com> - 2.3.1-13
+- fix CVE-2021-3575
+
 * Thu Jul 11 2024 xinghe <xinghe2@h-partners.com> - 2.3.1-12
 - Type:cves
 - ID:CVE-2023-39328