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CVE-2020-11996

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 sufficien...

Published: Jun 26, 2020Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUNVD-CWE-noinfo
NVD MITRE
7.5CVSSHIGH
EPSS Score
26.7%
Top 2.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

Uncontrolled Resource Consumption in Apache Tomcat

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

org.apache.tomcat:tomcatMavenOSS Libraries
org.apache.tomcat.embed:tomcat-embed-coreMavenOSS Libraries
tomcatapache
On-premWeb App
Networking Infrastructure / load-balancer-proxy
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
mysql enterprise monitororacle
On-premDatabase
Databases / relational
mavenpackage-ecosystemOSS Libraries
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
canonicalcommercialGBOperating Systemsaka canonical ltd.
oraclecommercialUSDatabasesaka oracle corp.
and 13 more affected products View all →

Exploitability

Official Patch Available

References

https://nvd.nist.gov/vuln/detail/CVE-2020-11996
nvd.nist.gov
https://github.com/apache/tomcat/commit/9434a44d3449d620b1be70206819f8275b4a7509
github.com
https://github.com/apache/tomcat/commit/9a0231683a77e2957cea0fdee88b193b30b0c976
github.com
and 56 more references View all →

Timeline

Published
Jun 26, 2020
Last Updated
Nov 21, 2024

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