CVE-2021-21806

一、漏洞信息
 漏洞编号：[CVE-2021-21806](https://nvd.nist.gov/vuln/detail/CVE-2021-21806)
 漏洞归属组件：[webkit2gtk3](https://gitee.com/src-openeuler/webkit2gtk3)
 漏洞归属的版本：2.22.2,2.28.3,2.32.1
 CVSS V3.0分值：
  BaseScore：8.8 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
 漏洞简述：
  An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
 漏洞公开时间：2021-07-08 20:15
 漏洞创建时间：2021-09-23 15:31:00
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-21806
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| MISC | https://talosintelligence.com/vulnerability_reports/TALOS-2020-1214 |  |
| MLIST | http://www.openwall.com/lists/oss-security/2021/07/23/1 |  |
| redhat | https://access.redhat.com/security/cve/CVE-2021-21806 |  |
| talosintelligence | https://talosintelligence.com/vulnerability_reports/TALOS-2020-1214 |  |
| openwall |  http://www.openwall.com/lists/oss-security/2021/07/23/1 |  |

</details>

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:
  其它
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

无
</details>

二、漏洞分析结构反馈
 影响性分析说明：
  An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
 openEuler评分：
  8.8
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(2.22.2):受影响
2.master(2.38.2):不受影响
3.openEuler-22.03-LTS-SP1(2.36.3):不受影响
4.openEuler-22.03-LTS-SP3(2.36.3):不受影响
5.openEuler-22.03-LTS-SP4(2.36.3):不受影响
6.openEuler-24.03-LTS(2.38.2):不受影响
7.openEuler-24.03-LTS-Next(2.38.2):不受影响

修复是否涉及abi变化(是/否)：
  1.master(2.38.2):否
2.openEuler-20.03-LTS-SP4(2.22.2):否
3.openEuler-22.03-LTS-SP1(2.36.3):否
4.openEuler-22.03-LTS-SP3(2.36.3):否
5.openEuler-22.03-LTS-SP4(2.36.3):否
6.openEuler-24.03-LTS(2.38.2):否
7.openEuler-24.03-LTS-Next(2.38.2):否

src-openEuler/webkitgtk

Content Risk Flag

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src-openEuler/webkitgtk .gitee-modal { width: 500px !important; }

Content Risk Flag

CVE-2021-21806

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src-openEuler/webkitgtk