Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2020-11996

Disclosure Date: June 26, 2020
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

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.

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • apache,
  • canonical,
  • debian,
  • netapp,
  • opensuse,
  • oracle

Products

  • debian linux 10.0,
  • debian linux 9.0,
  • leap 15.1,
  • leap 15.2,
  • mysql enterprise monitor,
  • oncommand system manager 3.0,
  • oncommand system manager 3.1.3,
  • siebel ui framework,
  • tomcat,
  • tomcat 10.0.0,
  • tomcat 9.0.0,
  • ubuntu linux 20.04,
  • workload manager 12.2.0.1,
  • workload manager 18c,
  • workload manager 19c

References

Advisory

Additional Info

Technical Analysis