CVE-2025-47950

一、漏洞信息
 漏洞编号：[CVE-2025-47950](https://nvd.nist.gov/vuln/detail/CVE-2025-47950)
 漏洞归属组件：[coredns](https://gitee.com/src-openeuler/coredns)
 漏洞归属的版本：1.11.3,1.7.0
 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：
  CoreDNS is a DNS server that chains plugins. In versions prior to 1.12.2, a Denial of Service (DoS) vulnerability exists in the CoreDNS DNS-over-QUIC (DoQ) server implementation. The server previously created a new goroutine for every incoming QUIC stream without imposing any limits on the number of concurrent streams or goroutines. A remote, unauthenticated attacker could open a large number of streams, leading to uncontrolled memory consumption and eventually causing an Out Of Memory (OOM) crash — especially in containerized or memory-constrained environments. The patch in version 1.12.2 introduces two key mitigation mechanisms: `max_streams`, which caps the number of concurrent QUIC streams per connection with a default value of `256`; and `worker_pool_size`, which Introduces a server-wide, bounded worker pool to process incoming streams with a default value of `1024`. This eliminates the 1:1 stream-to-goroutine model and ensures that CoreDNS remains resilient under high concurrency.  Some workarounds are available for those who are unable to upgrade. Disable QUIC support by removing or commenting out the `quic://` block in the Corefile, use container runtime resource limits to detect and isolate excessive memory usage, and/or monitor QUIC connection patterns and alert on anomalies.
 漏洞公开时间：2025-06-07 02:15:35
 漏洞创建时间：2025-09-16 19:53:15
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-47950
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://datatracker.ietf.org/doc/html/rfc9250 |  |
|  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  |
|  | https://github.com/coredns/coredns/security/advisories/GHSA-cvx7-x8pj-x2gw |  |
|  | https://github.com/quic-go/quic-go |  |
|  | https://www.usenix.org/conference/usenixsecurity23/presentation/botella |  |
|  | https://github.com/advisories/GHSA-cvx7-x8pj-x2gw |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-47950 |  |
|  | https://github.com/coredns/coredns |  |
|  | https://www.mend.io/vulnerability-database/CVE-2025-47950 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-47950 |  |
|  | https://github.com/coredns/coredns |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-47950 |  |
|  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  |
|  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  |
|  | https://datatracker.ietf.org/doc/html/rfc9250 |  |
|  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  |
|  | https://github.com/coredns/coredns/security/advisories/GHSA-cvx7-x8pj-x2gw |  |
|  | https://github.com/quic-go/quic-go |  |
|  | https://www.usenix.org/conference/usenixsecurity23/presentation/botella |  |
|  | https://datatracker.ietf.org/doc/html/rfc9250 |  |
|  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  |
|  | https://github.com/coredns/coredns/security/advisories/GHSA-cvx7-x8pj-x2gw |  |
|  | https://github.com/quic-go/quic-go |  |
|  | https://www.usenix.org/conference/usenixsecurity23/presentation/botella |  |

</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  |
| ------- | -------- | ------- | -------- | --------- |
| coredns/coredns |  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1.patch |  | ljqc |
|  |  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  | nvd |
|  |  | https://github.com/coredns/coredns/commit/efaed02c6a480ec147b1f799aab7cf815b17dfe1 |  | snyk |

</details>
 
二、漏洞分析结构反馈
 影响性分析说明：
  
 openEuler评分：
   
 受影响版本排查(受影响/不受影响)：
  1.master:
2.openEuler-20.03-LTS-SP4(1.7.0):
3.openEuler-22.03-LTS-SP3(1.7.0):
4.openEuler-22.03-LTS-SP4(1.7.0):
5.openEuler-24.03-LTS(1.7.0):
6.openEuler-24.03-LTS-Next(1.7.0):
7.openEuler-24.03-LTS-SP1(1.7.0):
8.openEuler-24.03-LTS-SP2(1.7.0):

修复是否涉及abi变化(是/否)：
  1.master:
2.openEuler-20.03-LTS-SP4(1.7.0):
3.openEuler-22.03-LTS-SP3(1.7.0):
4.openEuler-22.03-LTS-SP4(1.7.0):
5.openEuler-24.03-LTS(1.7.0):
6.openEuler-24.03-LTS-Next(1.7.0):
7.openEuler-24.03-LTS-SP1(1.7.0):
8.openEuler-24.03-LTS-SP2(1.7.0):

原因说明：
  1.master:
2.openEuler-20.03-LTS-SP4(1.7.0):
3.openEuler-22.03-LTS-SP3(1.7.0):
4.openEuler-22.03-LTS-SP4(1.7.0):
5.openEuler-24.03-LTS(1.7.0):
6.openEuler-24.03-LTS-Next(1.7.0):
7.openEuler-24.03-LTS-SP1(1.7.0):
8.openEuler-24.03-LTS-SP2(1.7.0):

src-openEuler/coredns

Content Risk Flag

Comments (3)

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

Content Risk Flag

CVE-2025-47950

Comments (3)

Search

src-openEuler/coredns