CVE-2025-27219

一、漏洞信息
 漏洞编号：[CVE-2025-27219](https://nvd.nist.gov/vuln/detail/CVE-2025-27219)
 漏洞归属组件：[ruby](https://gitee.com/src-openeuler/ruby)
 漏洞归属的版本：3.2.6
 CVSS V3.0分值：
  BaseScore：7.5 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.
 漏洞公开时间：2025-03-04 08:15
 漏洞创建时间：2025-02-27 09:30:09
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-27219
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| cve.mitre.org | https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml |  |
| cve.mitre.org | https://hackerone.com/reports/2936778 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-27219 | https://bugzilla.suse.com/show_bug.cgi?id=1237804 |
| suse_bugzilla | https://www.ruby-lang.org/en/news/2025/02/26/security-advisories/ | https://bugzilla.suse.com/show_bug.cgi?id=1237804 |
| ruby |  | https://github.com/rubysec/ruby-advisory-db/gems/cgi/CVE-2025-27219.yml |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2025-27219 | https://explore.alas.aws.amazon.com/CVE-2025-27219.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27219 | https://explore.alas.aws.amazon.com/CVE-2025-27219.html |

</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>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2025-27219.yml |  | nvd |
|  |  | https://hackerone.com/reports/2936778 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  在某些情况下，CGI::Cookie.parse解析cookie字符串花费了超线性的时间。将恶意构建的Cookie字符串输入方法可能会导致拒绝服务。
 openEuler评分：
  7.5
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(3.2.7):受影响
2.openEuler-20.03-LTS-SP4(2.5.8):受影响
3.openEuler-22.03-LTS-SP3(3.0.3):受影响
4.openEuler-22.03-LTS-SP4(3.0.3):受影响
5.openEuler-24.03-LTS(3.2.2):受影响
6.openEuler-24.03-LTS-Next(3.2.2):受影响
7.openEuler-24.03-LTS-SP1(3.2.2):受影响

修复是否涉及abi变化(是/否)：
  1.master(3.2.7):否
2.openEuler-20.03-LTS-SP4(2.5.8):否
3.openEuler-22.03-LTS-SP3(3.0.3):否
4.openEuler-22.03-LTS-SP4(3.0.3):否
5.openEuler-24.03-LTS(3.2.2):否
6.openEuler-24.03-LTS-Next(3.2.2):否
7.openEuler-24.03-LTS-SP1(3.2.2):否

原因说明：
  1.master(3.2.7):正常修复
2.openEuler-20.03-LTS-SP4(2.5.8):正常修复
3.openEuler-22.03-LTS-SP3(3.0.3):正常修复
4.openEuler-22.03-LTS-SP4(3.0.3):正常修复
5.openEuler-24.03-LTS(3.2.2):正常修复
6.openEuler-24.03-LTS-Next(3.2.2):正常修复
7.openEuler-24.03-LTS-SP1(3.2.2):正常修复

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1264

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