diff --git a/debian/changelog b/debian/changelog
index 474f8b88de304d27963fb7ec3731ac05511a61ad..b647a86607bca411f79428135e34d1873867610e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+libraw (0.19.5-ok6) yangtze; urgency=medium
+
+  * zdongfh321 CVE-2020-35532 安全更新：修复Libraw中的simple_decode_row()函数越界写入
+
+ -- dongfh321 <duanfh@bupt.edu.cn>  Fri, 17 Mar 2023 11:42:04 +0800
+
 libraw (0.19.5-ok5) yangtze; urgency=medium
 
   * zhangce1999 CVE-2020-35531 安全更新：get_huffman_diff()函数（libraw\src\x3f\x3f_utils_patched.cpp）在从图像文件读取数据时存在越界读取漏洞。
diff --git a/internal/libraw_x3f.cpp b/internal/libraw_x3f.cpp
index 1b386208e560e70895a9ca415b0417cfddc279d6..0467778c67b109bedf93b46bdc00ac66c5ac7f51 100644
--- a/internal/libraw_x3f.cpp
+++ b/internal/libraw_x3f.cpp
@@ -1484,6 +1484,8 @@ static void simple_decode_row(x3f_info_t *I,
   x3f_image_data_t *ID = &DEH->data_subsection.image_data;
   x3f_huffman_t *HUF = ID->huffman;
 
+  if (row*row_stride > ID->data_size - (ID->columns*sizeof(uint32_t)))
+	  throw LIBRAW_EXCEPTION_IO_CORRUPT;
   uint32_t *data = (uint32_t *)((unsigned char*)ID->data + row*row_stride);
 
   uint16_t c[3] = {0,0,0};