Multiple vulnerabilities have been discovered in openjpeg2, the open-source JPEG 2000 codec, which could result in denial of service or the execution of arbitrary code when opening a malformed image.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4251 advisory.

    OpenJPEG is an open source library for reading and writing image files in JPEG2000 format.

    The following packages have been upgraded to a later upstream version: openjpeg2 (2.4.0).

    Security Fix(es):

    * openjpeg: use-after-free and double-free via a mix of valid and invalid files in a directory operated on     by the decompressor (CVE-2020-15389)

    * openjpeg: heap-buffer-overflow in lib/openjp2/mqc.c could result in DoS (CVE-2020-27814)

    * openjpeg: heap-buffer-overflow write in opj_tcd_dc_level_shift_encode() (CVE-2020-27823)

    * openjpeg: heap-buffer-overflow in color.c may lead to DoS or arbitrary code execution (CVE-2021-3575)

    * openjpeg: integer overflow in opj_t1_encode_cblks in src/lib/openjp2/t1.c (CVE-2018-5727)

    * openjpeg: integer overflow in opj_j2k_setup_encoder function in openjp2/j2k.c (CVE-2018-5785)

    * openjpeg: division-by-zero in functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in openmj2/pi.c     (CVE-2018-20845)

    * openjpeg: integer overflow in function opj_get_encoding_parameters in openjp2/pi.c (CVE-2018-20847)

    * openjpeg: denial of service in function opj_t1_encode_cblks in openjp2/t1.c (CVE-2019-12973)

    * openjpeg: global-buffer-overflow read in opj_dwt_calc_explicit_stepsizes() (CVE-2020-27824)

    * openjpeg: null pointer dereference in opj_tgt_reset function in lib/openjp2/tgt.c (CVE-2020-27842)

    * openjpeg: out-of-bounds read in opj_t2_encode_packet function in openjp2/t2.c (CVE-2020-27843)

    * openjpeg: heap-based buffer overflow in functions opj_pi_next_rlcp, opj_pi_next_rpcl and     opj_pi_next_lrcp in openjp2/pi.c (CVE-2020-27845)

    * openjpeg: out-of-bounds write due to an integer overflow in opj_compress.c (CVE-2021-29338)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - 在 openjpeg2 處理某些 PNG 格式檔案的方式中，發現一個堆積型緩衝區溢位問題。攻擊者可利用此瑕疵，造成應用程式損毀，或在極少數情況下，可能以執行該應用程式的使用者權限來執行任意程式碼。(CVE-2020-27814)

請注意，Nessus 依賴供應商報告的套件存在。

已發現並修正多種溢位錯誤。

CVE-2020-27814

在 openjpeg2 處理某些 PNG 格式檔案的方式中，發現一個堆積型緩衝區溢位問題。

CVE-2020-27823

如果使用 -d 選項，則會錯誤計算 x1,y1，進而導致堆積緩衝區溢位。

CVE-2020-27824

若指定過多分解層級，在執行不可逆的轉換時會發生全域緩衝區溢位。

CVE-2020-27841

提供特別建構的輸入給 openjpeg 編碼器處理時，可造成超出邊界讀取。

CVE-2020-27844

提供特別建構的輸入給 openjpeg 編碼器處理時，可造成超出邊界寫入。

CVE-2020-27845

特別建構的輸入可造成超出邊界讀取。

針對 Debian 9 Stretch，已在 2.1.2-1.1+deb9u6 版本中修正這些問題。

建議您升級 openjpeg2 套件。

如需有關 openjpeg2 安全性狀態的詳細資訊，請參閱其安全追蹤頁面：
https://security-tracker.debian.org/tracker/openjpeg2

注意：Tenable Network Security 已直接從 DLA 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

在開放原始碼 JPEG 2000 轉碼器 openjpeg2 中發現多個弱點，當開啓格式錯誤的圖像時，這些弱點可導致拒絕服務或遠端程式碼執行。

遠端 Redhat Enterprise Linux 8 主機上安裝的套件受到 RHSA-2021:4251 公告中提及的多個弱點影響。

  - openjpeg：src/lib/openjp2/t1.c 中 opj_t1_encode_cblks 的整數溢位弱點 (CVE-2018-5727)

  - openjpeg：openjp2/j2k.c 的 opj_j2k_setup_encoder 函式中的整數溢位弱點 (CVE-2018-5785)

  - openjpeg：openmj2/pi.c 的 pi_next_pcrl、pi_next_cprl 和 pi_next_rpcl 函式中的除以零問題 (CVE-2018-20845)

  - openjpeg：openjp2/pi.c 的 opj_get_encoding_parameters 函式中的整數溢位弱點 (CVE-2018-20847)

  - openjpeg：openjp2/t1.c 的 opj_t1_encode_cblks 函式中的拒絕服務弱點 (CVE-2019-12973)

  - openjpeg：透過在解壓縮程式操作的目錄中混合有效和無效檔案，造成釋放後使用和雙重釋放問題 (CVE-2020-15389)

  - openjpeg：lib/openjp2/mqc.c 中的堆積型緩衝區溢位弱點可導致 DoS (CVE-2020-27814)

  - openjpeg：寫入資料時，opj_tcd_dc_level_shift_encode() 中會發生堆積型緩衝區溢位 (CVE-2020-27823)

  - openjpeg：讀取資料時，opj_dwt_calc_explicit_stepsizes() 中會發生全域緩衝區溢位 (CVE-2020-27824)

  - openjpeg：lib/openjp2/tgt.c 的 opj_tgt_reset 函式中的 null 指標解除參照弱點 (CVE-2020-27842)

  - openjpeg：openjp2/t2.c 的 opj_t2_encode_packet 函式中的超出邊界讀取弱點 (CVE-2020-27843)

  - openjpeg：openjp2/pi.c 的 opj_pi_next_rlcp、opj_pi_next_rpcl 和 opj_pi_next_lrcp 函式中包含堆積型緩衝區溢位弱點 (CVE-2020-27845)

  - openjpeg：color.c 中的堆積型緩衝區溢位弱點可導致 DoS 或任意程式碼執行 (CVE-2021-3575)

  - openjpeg：opj_compress.c 中的整數溢位問題可造成超出邊界寫入 (CVE-2021-29338)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

According to the version of the openjpeg2 package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  - A heap-buffer overflow was found in the way openjpeg2     handled certain PNG format files. An attacker could use     this flaw to cause an application crash or in some     cases execute arbitrary code with the permission of the     user running such an application.(CVE-2020-27814)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 ESM / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5952-1 advisory.

    Sebastian Poeplau discovered that OpenJPEG incorrectly handled certain inputs. If a user or an automated     system were tricked into opening a specially crafted input file, a remote attacker could possibly use this     issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2020-6851, CVE-2020-8112)

    It was discovered that OpenJPEG incorrectly handled certain inputs. If a user or an automated system were     tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to     cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2020-15389, CVE-2020-27814, CVE-2020-27823, CVE-2020-27824, CVE-2020-27841, CVE-2020-27845)

    It was discovered that OpenJPEG incorrectly handled certain inputs. If a user or an automated system were     tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to     cause a denial of service. (CVE-2020-27842, CVE-2020-27843)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4686-1 advisory.

    It was discovered that Ghostscript incorrectly handled certain image files. If a user or automated system     were tricked into processing a specially crafted file, a remote attacker could use this issue to cause     Ghostscript to crash, resulting in a denial of service, or possibly execute arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:4251 advisory.

  - Division-by-zero vulnerabilities in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in     openmj2/pi.c in OpenJPEG through 2.3.0 allow remote attackers to cause a denial of service (application     crash). (CVE-2018-20845)

  - An improper computation of p_tx0, p_tx1, p_ty0 and p_ty1 in the function opj_get_encoding_parameters in     openjp2/pi.c in OpenJPEG through 2.3.0 can lead to an integer overflow. (CVE-2018-20847)

  - In OpenJPEG 2.3.0, there is an integer overflow vulnerability in the opj_t1_encode_cblks function     (openjp2/t1.c). Remote attackers could leverage this vulnerability to cause a denial of service via a     crafted bmp file. (CVE-2018-5727)

  - In OpenJPEG 2.3.0, there is an integer overflow caused by an out-of-bounds left shift in the     opj_j2k_setup_encoder function (openjp2/j2k.c). Remote attackers could leverage this vulnerability to     cause a denial of service via a crafted bmp file. (CVE-2018-5785)

  - In OpenJPEG 2.3.1, there is excessive iteration in the opj_t1_encode_cblks function of openjp2/t1.c.
    Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.
    This issue is similar to CVE-2018-6616. (CVE-2019-12973)

  - jp2/opj_decompress.c in OpenJPEG through 2.3.1 has a use-after-free that can be triggered if there is a     mix of valid and invalid files in a directory operated on by the decompressor. Triggering a double-free     may also be possible. This is related to calling opj_image_destroy twice. (CVE-2020-15389)

  - A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could     use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of     the user running such an application. (CVE-2020-27814)

  - A flaw was found in OpenJPEG's encoder. This flaw allows an attacker to pass specially crafted x,y offset     input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to     confidentiality, integrity, as well as system availability. (CVE-2020-27823)

  - A flaw was found in OpenJPEG's encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows     an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest     threat from this vulnerability is to system availability. (CVE-2020-27824)

  - There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide     crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of     this flaw is to application availability. (CVE-2020-27842)

  - A flaw was found in OpenJPEG in versions prior to 2.4.0. This flaw allows an attacker to provide specially     crafted input to the conversion or encoding functionality, causing an out-of-bounds read. The highest     threat from this vulnerability is system availability. (CVE-2020-27843)

  - There's a flaw in src/lib/openjp2/pi.c of openjpeg in versions prior to 2.4.0. If an attacker is able to     provide untrusted input to openjpeg's conversion/encoding functionality, they could cause an out-of-bounds     read. The highest impact of this flaw is to application availability. (CVE-2020-27845)

  - Integer Overflow in OpenJPEG v2.4.0 allows remote attackers to crash the application, causing a Denial of     Service (DoS). This occurs when the attacker uses the command line option -ImgDir on a directory that     contains 1048576 files. (CVE-2021-29338)

  - A heap-based buffer overflow was found in openjpeg in color.c:379:42 in sycc420_to_rgb when decompressing     a crafted .j2k file. An attacker could use this to execute arbitrary code with the permissions of the     application compiled against openjpeg. (CVE-2021-3575)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-4251 advisory.

    - Fix CVE-2021-3575 (#1969279)
    - Fix CVE-2021-29338 (#1951332)
    - Resolves: CVE-2018-5727 (#1538467)
    - Resolves: CVE-2018-5785 (#1538556)
    - Resolves: CVE-2018-20845 (#1730679)
    - Resolves: CVE-2018-20847 (#1734337)
    - Resolves: CVE-2019-12973 (#1739076)
    - Resolves: CVE-2020-15389 (#1855115)
    - Resolves: CVE-2020-27814 (#1908965)
    - Resolves: CVE-2020-27823 (#1906222)
    - Resolves: CVE-2020-27824 (#1906216)
    - Resolves: CVE-2020-27842 (#1908165)
    - Resolves: CVE-2020-27843 (#1908164)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update backports patches for CVE-2020-27841, CVE-2020-27842, CVE-2020-27843, CVE-2020-27845.

----

This update backports patches for CVE-2020-27824 and CVE-2020-27823.

----

Backport patch for CVE-2020-27814.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the openjpeg2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in OpenJPEG's encoder. This flaw     allows an attacker to pass specially crafted x,y offset     input to OpenJPEG to use during encoding. The highest     threat from this vulnerability is to confidentiality,     integrity, as well as system     availability.(CVE-2020-27823)

  - A flaw was found in OpenJPEG's encoder in the     opj_dwt_calc_explicit_stepsizes() function. This flaw     allows an attacker who can supply crafted input to     decomposition levels to cause a buffer overflow. The     highest threat from this vulnerability is to system     availability.(CVE-2020-27824)

  - jp2/opj_decompress.c in OpenJPEG through 2.3.1 has a     use-after-free that can be triggered if there is a mix     of valid and invalid files in a directory operated on     by the decompressor. Triggering a double-free may also     be possible. This is related to calling     opj_image_destroy twice.(CVE-2020-15389)

  - A flaw was found in OpenJPEG in versions prior to     2.4.0. This flaw allows an attacker to provide     specially crafted input to the conversion or encoding     functionality, causing an out-of-bounds read. The     highest threat from this vulnerability is system     availability.(CVE-2020-27843)

  - A heap-buffer overflow was found in the way openjpeg2     handled certain PNG format files. An attacker could use     this flaw to cause an application crash or in some     cases execute arbitrary code with the permission of the     user running such an application.(CVE-2020-27814)

  - There's a flaw in openjpeg in versions prior to 2.4.0     in src/lib/openjp2/pi.c. When an attacker is able to     provide crafted input to be processed by the openjpeg     encoder, this could cause an out-of-bounds read. The     greatest impact from this flaw is to application     availability.(CVE-2020-27841)

  - There's a flaw in src/lib/openjp2/pi.c of openjpeg in     versions prior to 2.4.0. If an attacker is able to     provide untrusted input to openjpeg's     conversion/encoding functionality, they could cause an     out-of-bounds read. The highest impact of this flaw is     to application availability.(CVE-2020-27845)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 在 openjpeg2 处理某些 PNG 格式文件的方式中发现堆缓冲区溢出。攻击者可利用此缺陷导致应用程序崩溃，或在某些情况下，以运行此类应用程序的用户的权限执行任意代码。(CVE-2020-27814)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

已识别并修复各种溢出错误。

CVE-2020-27814

在 openjpeg2 处理某些 PNG 格式文件的方式中发现堆缓冲区溢出。

CVE-2020-27823

如果使用了 -d 选项，则 x1,y1 出现计算错误，从而导致堆缓冲区溢出。

CVE-2020-27824

指定过多分解级别时，会在不可逆转转换期间发生全局缓冲区溢出。

CVE-2020-27841

由 openjpeg 编码器处理的构建输入会导致越界读取。

CVE-2020-27844

由 openjpeg 编码器处理的构建输入会导致越界写入。

CVE-2020-27845

构建的输入可造成越界读取。

对于 Debian 9 stretch，已在版本 2.1.2-1.1+deb9u6 中修复这些问题。

我们建议您升级 openjpeg2 程序包。

如需了解 openjpeg2 的详细安全状态，请参阅其安全跟踪页面：
https://security-tracker.debian.org/tracker/openjpeg2

注意：Tenable Network Security 已直接从 DLA 安全公告中提取上述描述块。Tenable 已尝试在不引入其他问题的情况下，尽可能进行自动清理和排版。

远程 Redhat Enterprise Linux 8 主机上安装的程序包受到 RHSA-2021:4251 公告中提及的多个漏洞的影响。

  - openjpeg：src/lib/openjp2/t1.c 的 opj_t1_encode_cblks 中存在整数溢出问题 (CVE-2018-5727)

  - openjpeg：openjp2/j2k.c 的 opj_j2k_setup_encoder 函数中存在整数溢出问题 (CVE-2018-5785)

  - openjpeg：openmj2/pi.c 的函数 pi_next_pcrl、pi_next_cprl 和 pi_next_rpcl 中存在除以零漏洞 (CVE-2018-20845)

  - openjpeg：openjp2/pi.c 的函数 opj_get_encoding_parameters 中存在整数溢出问题 (CVE-2018-20847)

  - openjpeg：openjp2/t1.c 的函数 opj_t1_encode_cblks 中存在拒绝服务问题 (CVE-2019-12973)

  - openjpeg：由解压缩程序操作的目录中的有效和无效文件组合可造成释放后使用和双重释放 (CVE-2020-15389)

  - openjpeg：lib/openjp2/mqc.c 中存在堆缓冲区溢出问题，可导致 DoS (CVE-2020-27814)

  - openjpeg：opj_tcd_dc_level_shift_encode() 中存在堆缓冲区溢出写入问题 (CVE-2020-27823)

  - openjpeg：opj_dwt_calc_explicit_stepsizes() 中存在全局缓冲区溢出读取问题 (CVE-2020-27824)

  - openjpeg：lib/openjp2/tgt.c 的 opj_tgt_reset 函数中存在空指针取消引用问题 (CVE-2020-27842)

  - openjpeg：openjp2/t2.c 的 opj_t2_encode_packet 函数中存在越界读取问题 (CVE-2020-27843)

  - openjpeg：openjp2/pi.c 的函数 opj_pi_next_rlcp、opj_pi_next_lrcp 和 opj_pi_next_lrcp 中存在基于堆的缓冲区溢出问题 (CVE-2020-27845)

  - openjpeg：color.c 中存在堆缓冲区溢出问题，可导致 DoS 或任意代码执行 (CVE-2021-3575)

  - openjpeg：opj_compress.c 中存在整数溢出问题，可导致越界写入 (CVE-2021-29338)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

在开源 JPEG 2000 编解码器 openjpeg2 中发现多个漏洞，这些漏洞可在打开畸形图像时造成拒绝服务或任意代码执行。

ID	名稱	產品	系列	已發布	已更新	嚴重性
148305	Debian DSA-4882-1 : openjpeg2 - security update	Nessus	Debian Local Security Checks	2021/4/2	2024/1/12	high
155190	RHEL 8 : openjpeg2 (RHSA-2021:4251)	Nessus	Red Hat Local Security Checks	2021/11/11	2025/3/15	high
223491	Linux Distros 未修補弱點：CVE-2020-27814	Nessus	Misc.	2025/3/4	2025/9/14	high
146321	Debian DLA-2550-1：openjpeg2 安全性更新	Nessus	Debian Local Security Checks	2021/2/9	2024/1/22	high
148305	Debian DSA-4882-1：openjpeg2 - 安全性更新	Nessus	Debian Local Security Checks	2021/4/2	2024/1/12	high
155190	RHEL 8：openjpeg2 (RHSA-2021:4251)	Nessus	Red Hat Local Security Checks	2021/11/11	2025/3/15	high
147108	EulerOS Virtualization for ARM 64 3.0.6.0 : openjpeg2 (EulerOS-SA-2021-1587)	Nessus	Huawei Local Security Checks	2021/3/4	2024/1/12	high
172576	Ubuntu 16.04 ESM / 18.04 LTS : OpenJPEG vulnerabilities (USN-5952-1)	Nessus	Ubuntu Local Security Checks	2023/3/15	2025/9/3	high
144787	Ubuntu 16.04 LTS / 18.04 LTS : Ghostscript vulnerabilities (USN-4686-1)	Nessus	Ubuntu Local Security Checks	2021/1/7	2024/8/27	high
185024	Rocky Linux 8 : openjpeg2 (RLSA-2021:4251)	Nessus	Rocky Linux Local Security Checks	2023/11/7	2023/11/7	high
155437	Oracle Linux 8 : openjpeg2 (ELSA-2021-4251)	Nessus	Oracle Linux Local Security Checks	2021/11/17	2024/11/1	high
145017	Fedora 32 : mingw-openjpeg2 / openjpeg2 (2020-d32853a28d)	Nessus	Fedora Local Security Checks	2021/1/15	2024/1/30	high
152287	EulerOS 2.0 SP9 : openjpeg2 (EulerOS-SA-2021-2276)	Nessus	Huawei Local Security Checks	2021/8/9	2023/12/6	high
223491	Linux Distros 未修补的漏洞: CVE-2020-27814	Nessus	Misc.	2025/3/4	2025/9/14	high
146321	Debian DLA-2550-1：openjpeg2 安全更新	Nessus	Debian Local Security Checks	2021/2/9	2024/1/22	high
155190	RHEL 8：openjpeg2 (RHSA-2021:4251)	Nessus	Red Hat Local Security Checks	2021/11/11	2025/3/15	high
148305	Debian DSA-4882-1：openjpeg2 - 安全更新	Nessus	Debian Local Security Checks	2021/4/2	2024/1/12	high

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