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cvelistApacheCVELIST:CVE-2020-11996
HistoryJun 26, 2020 - 4:27 p.m.

CVE-2020-11996

2020-06-2616:27:20
apache
www.cve.org
4
cve-2020-11996
http/2
apache tomcat 10
apache tomcat 9
apache tomcat 8.5
cpu usage
server unresponsive

AI Score

7.5

Confidence

High

EPSS

0.002

Percentile

55.7%

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

CNA Affected

[
  {
    "product": "Apache Tomcat",
    "vendor": "Apache",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.0-M1 to 10.0.0-M5"
      },
      {
        "status": "affected",
        "version": "9.0.0.M1 to 9.0.35"
      },
      {
        "status": "affected",
        "version": "8.5.0 to 8.5.55"
      }
    ]
  }
]

References