CVEvulnerability

CVE-2020-11996

7.5 HIGH Published 2020-06-26 Modified 2026-10-08 Official page ↗
Status
Modified
Published
2020-06-26
Last modified
2026-10-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

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.

Affected configurations

• apache tomcat (>= 8.5.0 <= 8.5.55) • apache tomcat (>= 9.0.0 <= 9.0.35) • apache tomcat 9.0.0 • apache tomcat 10.0.0 • canonical ubuntu linux 20.04 • oracle mysql enterprise monitor (<= 8.0.21) • oracle siebel ui framework (<= 20.12) • oracle workload manager 12.2.0.1 • oracle workload manager 18c • oracle workload manager 19c • opensuse leap 15.1 • opensuse leap 15.2 • debian debian linux 9.0 • debian debian linux 10.0 • netapp oncommand system manager 3.0 • netapp oncommand system manager 3.1.3

References