遠端 Oracle Linux 7 主機中安裝的套件受到 ELSA-2020-4039 公告中提及的多個弱點影響。

  - 在 OpenEXR 2.4.1 之前版本中發現一個問題。在 Huffman 解壓縮期間發生超出邊界讀取，ImfFastHuf.cpp 中的 FastHufDecoder: : refill 即為一例。(CVE-2020-11761)

  - 在 OpenEXR 2.4.1 之前版本中發現一個問題。存在 std: : 向量超出邊界讀取和寫入， ImfTileOffsets.cpp 即為一例 。(CVE-2020-11763)

  - 在 OpenEXR 2.4.1 之前版本中發現一個問題。ImfMisc.cpp 的 copyIntoFrameBuffer 中存在超出邊界寫入問題。(CVE-2020-11764)

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

在 OpenEXR 影像庫中發現多個安全性問題，在處理格式錯誤的 EXR 影像檔案時，這些問題會導致拒絕服務，並可能造成任意程式碼執行。

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 OpenEXR 2.4.1 之前版本中發現一個問題。存在 std::vector 超出邊界讀取和寫入，ImfTileOffsets.cpp 即為一例。 (CVE-2020-11763)

請注意，Nessus 依賴供應商報告的套件存在。

安全修复：

  - OpenEXR：Huffman 解压缩期间存在越界读取 (CVE-2020-11761)

  - OpenEXR：ImfTileOffsets.cpp 中存在 std: : vector 越界读取和写入 (CVE-2020-11763)

  - OpenEXR：ImfMisc.cpp 的 copyIntoFrameBuffer 函数中存在越界写入 (CVE-2020-11764)

远程 CentOS Linux 7 主机上安装的程序包受到 RHSA-2020:4039 公告中提及的多个漏洞影响。

  - 2.4.1 之前的 OpenEXR 版本中发现一个问题。Huffman 解压缩期间存在一个越界读取，ImfFastHuf.cpp 中的 FastHufDecoder::refill 即为一例。 (CVE-2020-11761)

  - 2.4.1 之前的 OpenEXR 版本中发现一个问题。存在 std::vector 越界读取和写入，这一点已由 ImfTileOffsets.cpp 证实。 (CVE-2020-11763)

  - 2.4.1 之前的 OpenEXR 版本中发现一个问题。ImfMisc.cpp 的 copyIntoFrameBuffer 中存在越界写入。(CVE-2020-11764)

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。

Brandon Perry 发现 OpenEXR 未能正确处理某些畸形 EXR 图像文件。如果用户受到诱骗打开特制的 EXR 图像文件，则远程攻击者可造成拒绝服务或可能执行任意代码。此问题仅影响 Ubuntu 20.04 LTS。（CVE-2017-9111、CVE-2017-9113、CVE-2017-9115）

Tan Jie 发现 OpenEXR 未正确处理某些格式错误的 EXR 图像文件。如果用户受到诱骗打开特制的 EXR 图像文件，则远程攻击者可造成拒绝服务或可能执行任意代码。此问题仅影响 Ubuntu 20.04 LTS。(CVE-2018-18444)

Samuel Gross 发现 OpenEXR 未正确处理某些格式错误的 EXR 图像文件。如果用户受到诱骗打开精心构建的 EXR 图像文件，远程攻击者可造成拒绝服务，或可能执行任意代码。（CVE-2020-11758、CVE-2020-11759、CVE-2020-11760、CVE-2020-11761、CVE-2020-11762、CVE-2020-11763、CVE-2020-11764）

据发现，OpenEXR 未正确处理某些格式错误的 EXR 图像文件。如果用户受到诱骗打开精心构建的 EXR 图像文件，远程攻击者可造成拒绝服务。
(CVE-2020-11765)。

请注意，Tenable Network Security 已直接从 Ubuntu 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。

Security Fix(es) :

  - OpenEXR: out-of-bounds read during Huffman uncompression     (CVE-2020-11761)

  - OpenEXR: std::vector out-of-bounds read and write in     ImfTileOffsets.cpp (CVE-2020-11763)

  - OpenEXR: out-of-bounds write in copyIntoFrameBuffer     function in ImfMisc.cpp (CVE-2020-11764)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4039 advisory.

  - An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read during Huffman     uncompression, as demonstrated by FastHufDecoder::refill in ImfFastHuf.cpp. (CVE-2020-11761)

  - An issue was discovered in OpenEXR before 2.4.1. There is an std::vector out-of-bounds read and write, as     demonstrated by ImfTileOffsets.cpp. (CVE-2020-11763)

  - An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in     ImfMisc.cpp. (CVE-2020-11764)

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 / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4339-1 advisory.

    Brandon Perry discovered that OpenEXR incorrectly handled certain malformed EXR image files. If a user     were tricked into opening a crafted EXR image file, a remote attacker could cause a denial of service, or     possibly execute arbitrary code. This issue only applied to Ubuntu 20.04 LTS. (CVE-2017-9111,     CVE-2017-9113, CVE-2017-9115)

    Tan Jie discovered that OpenEXR incorrectly handled certain malformed EXR image files. If a user were     tricked into opening a crafted EXR image file, a remote attacker could cause a denial of service, or     possibly execute arbitrary code. This issue only applied to Ubuntu 20.04 LTS. (CVE-2018-18444)

    Samuel Gro discovered that OpenEXR incorrectly handled certain malformed EXR image files. If a user were     tricked into opening a crafted EXR image file, a remote attacker could cause a denial of service, or     possibly execute arbitrary code. (CVE-2020-11758, CVE-2020-11759, CVE-2020-11760, CVE-2020-11761,     CVE-2020-11762, CVE-2020-11763, CVE-2020-11764)

    It was discovered that OpenEXR incorrectly handled certain malformed EXR image files. If a user were     tricked into opening a crafted EXR image file, a remote attacker could cause a denial of service.
    (CVE-2020-11765)

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.

ID	Name	Product	Family	Published	Updated	Severity
141224	Oracle Linux 7：OpenEXR (ELSA-2020-4039)	Nessus	Oracle Linux Local Security Checks	10/7/2020	10/22/2024	medium
140061	Debian DSA-4755-1：openexr - 安全性更新	Nessus	Debian Local Security Checks	8/31/2020	2/22/2024	high
223029	Linux Distros 未修補弱點：CVE-2020-11763	Nessus	Misc.	3/4/2025	8/27/2025	medium
141748	Scientific Linux 安全更新：SL7.x x86_64 上的 OpenEXR (20201001)	Nessus	Scientific Linux Local Security Checks	10/21/2020	2/14/2024	medium
141592	CentOS 7：OpenEXR (RHSA-2020:4039)	Nessus	CentOS Local Security Checks	10/20/2020	10/9/2024	medium
136028	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS：OpenEXR 漏洞 (USN-4339-1)	Nessus	Ubuntu Local Security Checks	4/28/2020	8/27/2024	high
141748	Scientific Linux Security Update : OpenEXR on SL7.x x86_64 (20201001)	Nessus	Scientific Linux Local Security Checks	10/21/2020	2/14/2024	medium
141592	CentOS 7 : OpenEXR (RHSA-2020:4039)	Nessus	CentOS Local Security Checks	10/20/2020	10/9/2024	medium
136028	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : OpenEXR vulnerabilities (USN-4339-1)	Nessus	Ubuntu Local Security Checks	4/28/2020	8/27/2024	high

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