CVE-2021-3941

一、漏洞信息
 漏洞编号：[CVE-2021-3941](https://nvd.nist.gov/vuln/detail/CVE-2021-3941)
 漏洞归属组件：[OpenEXR](https://gitee.com/src-openeuler/OpenEXR)
 漏洞归属的版本：3.1.5,3.1.9,3.3.5
 CVSS V3.0分值：
  BaseScore：6.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
 漏洞简述：
  In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition which could affect the availability of programs linked with OpenEXR.
 漏洞公开时间：2022-03-26 03:15:00
 漏洞创建时间：2025-09-19 01:11:09
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-3941
<details>
<summary>更多参考(点击展开)</summary>

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漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

无
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二、漏洞分析结构反馈
 影响性分析说明：
  In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y; and chroma.green.y * (X + Z))) / d; but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition which could affect the availability of programs linked with OpenEXR.
 openEuler评分：
  6.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(2.2.0):受影响
2.master(3.3.5):不受影响
3.openEuler-22.03-LTS-SP3(3.1.5):不受影响
4.openEuler-22.03-LTS-SP4(3.1.5):不受影响
5.openEuler-24.03-LTS(3.1.11):不受影响
6.openEuler-24.03-LTS-Next(3.1.11):不受影响
7.openEuler-24.03-LTS-SP1(3.1.11):不受影响
8.openEuler-24.03-LTS-SP2(3.1.11):不受影响

修复是否涉及abi变化(是/否)：
  1.master(3.3.5):否
2.openEuler-20.03-LTS-SP4(2.2.0):否
3.openEuler-22.03-LTS-SP3(3.1.5):否
4.openEuler-22.03-LTS-SP4(3.1.5):否
5.openEuler-24.03-LTS(3.1.11):否
6.openEuler-24.03-LTS-Next(3.1.11):否
7.openEuler-24.03-LTS-SP1(3.1.11):否
8.openEuler-24.03-LTS-SP2(3.1.11):否

原因说明：
  1.openEuler-20.03-LTS-SP4(2.2.0):正常修复
2.master(3.3.5):不受影响-漏洞代码不能被攻击者触发
3.openEuler-22.03-LTS-SP3(3.1.5):不受影响-漏洞代码不能被攻击者触发
4.openEuler-22.03-LTS-SP4(3.1.5):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS(3.1.11):不受影响-漏洞代码不能被攻击者触发
6.openEuler-24.03-LTS-Next(3.1.11):不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1(3.1.11):不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP2(3.1.11):不受影响-漏洞代码不能被攻击者触发

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-2355

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