CVE-2025-61770

一、漏洞信息
 漏洞编号：[CVE-2025-61770](https://nvd.nist.gov/vuln/detail/CVE-2025-61770)
 漏洞归属组件：[pcs](https://gitee.com/src-openeuler/pcs)
 漏洞归属的版本：0.10.2,0.10.5,0.10.8,0.11.2,0.11.7,0.11.8
 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：
  Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` buffers the entire multipart preamble (bytes before the first boundary) in memory without any size limit. A client can send a large preamble followed by a valid boundary, causing significant memory use and potential process termination due to out-of-memory (OOM) conditions. Remote attackers can trigger large transient memory spikes by including a long preamble in multipart/form-data requests. The impact scales with allowed request sizes and concurrency, potentially causing worker crashes or severe slowdown due to garbage collection. Versions 2.2.19, 3.1.17, and 3.2.2 enforce a preamble size limit (e.g., 16 KiB) or discard preamble data entirely.
 漏洞公开时间：2025-10-07 23:16:02
 漏洞创建时间：2025-10-15 12:31:29
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-61770
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://github.com/rack/rack |  |
|  | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-61770 |  |
|  | https://security-tracker.debian.org/tracker/CVE-2025-61770 |  |
|  | https://github.com/advisories/GHSA-p543-xpfm-54cp |  |
|  | https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e |  |
|  | https://www.mend.io/vulnerability-database/CVE-2025-61770 |  |
|  | https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-61770 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2402174 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-61770 |  |
|  | https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-61770.yml |  |
|  | https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e |  |
|  | https://linux.oracle.com/errata/ELSA-2025-19512.html |  |
|  | https://linux.oracle.com/cve/CVE-2025-61770.html |  |
|  | https://github.com/rack/rack/security/advisories/GHSA-p543-xpfm-54cp |  |

</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:
  七彩瞬析开源风险感知平台
 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  |
| ------- | -------- | ------- | -------- | --------- |
| rack/rack |  | https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e |  | ljqc |
| rack/rack |  | https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e |  | ljqc |
| rack/rack |  | https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd |  | ljqc |
|  |  | https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e |  | cvelistv5 |
|  |  | https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd |  | cvelistv5 |
|  |  | https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e |  | cvelistv5 |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
                                         
 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(0.11.10):
2.openEuler-20.03-LTS-SP4(0.10.5):
3.openEuler-22.03-LTS-SP3(0.11.2):
4.openEuler-22.03-LTS-SP4(0.11.2):
5.openEuler-24.03-LTS(0.11.7):
6.openEuler-24.03-LTS-Next(0.11.7):
7.openEuler-24.03-LTS-SP1(0.11.7):
8.openEuler-24.03-LTS-SP2(0.11.7):

修复是否涉及abi变化(是/否)：
  1.master(0.11.10):
2.openEuler-20.03-LTS-SP4(0.10.5):
3.openEuler-22.03-LTS-SP3(0.11.2):
4.openEuler-22.03-LTS-SP4(0.11.2):
5.openEuler-24.03-LTS(0.11.7):
6.openEuler-24.03-LTS-Next(0.11.7):
7.openEuler-24.03-LTS-SP1(0.11.7):
8.openEuler-24.03-LTS-SP2(0.11.7):

原因说明：
  1.master(0.11.10):
2.openEuler-20.03-LTS-SP4(0.10.5):
3.openEuler-22.03-LTS-SP3(0.11.2):
4.openEuler-22.03-LTS-SP4(0.11.2):
5.openEuler-24.03-LTS(0.11.7):
6.openEuler-24.03-LTS-Next(0.11.7):
7.openEuler-24.03-LTS-SP1(0.11.7):
8.openEuler-24.03-LTS-SP2(0.11.7):

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CVE-2025-61770

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