CVE-2020-11080

一、漏洞信息
 漏洞编号：[CVE-2020-11080](https://nvd.nist.gov/vuln/detail/CVE-2020-11080)
 漏洞归属组件：nghttp2
 漏洞归属的版本：1.39.2
 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 nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
 漏洞公开时间：2020-06-04 07:15
 漏洞创建时间：2021-04-14 10:20:26
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2020-11080
 漏洞分析指导链接：
   
二、漏洞分析结构反馈
 影响性分析说明：
  In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
 openGauss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)：
  1.1.1.0:受影响
2.1.0.1:受影响
3.1.0.0:受影响

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CVE-2020-11080

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