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cve[email protected]CVE-2020-11996
HistoryJun 26, 2020 - 5:15 p.m.

CVE-2020-11996

2020-06-2617:15:10
[email protected]
web.nvd.nist.gov
552
In Wild
cve-2020-11996
apache tomcat
http/2
vulnerability
nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.8%

JSON

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

Vulners
NVD
Node
apachetomcatRange10.0.0-M1–10.0.0-M5
OR
apachetomcatRange9.0.0.M1–9.0.35
OR
apachetomcatRange8.5.0–8.5.55

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

Related

tomcat 3
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nessus 20
prion 1
openvas 13
cvelist 1
suse 2
osv 6
github 1
archlinux 1
ubuntucve 1
veracode 1
nvd 1
redhat 5
ibm 6
cisa 1
f5 1
checkpoint_advisories 1
redhatcve 1
debiancve 1
debian 2
photon 6
freebsd 1
mageia 1
atlassian 4
attackerkb 1
ubuntu 1
symantec 1
oracle 2
tomcat
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Fixed in Apache Tomcat 8.5.56
2020-06-07 00:00:00
Fixed in Apache Tomcat 9.0.36
2020-06-07 00:00:00
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Photon OS 1.0: Apache PHSA-2020-1.0-0308
2020-07-15 00:00:00
openSUSE Security Update : tomcat (openSUSE-2020-1051)
2020-07-27 00:00:00
Apache Tomcat 10.0.0.M1 < 10.0.0.M6
2021-06-21 00:00:00
prion
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2020-06-26 17:15:00
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SUSE: Security Advisory (SUSE-SU-2020:1841-1)
2021-04-19 00:00:00
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2020-06-29 00:00:00
SUSE: Security Advisory (SUSE-SU-2020:1962-1)
2021-06-09 00:00:00
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suse
suse
Security update for tomcat (important)
2020-07-23 00:00:00
Security update for tomcat (important)
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osv
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BIT-tomcat-2020-11996
2024-03-06 11:11:51
Uncontrolled Resource Consumption in Apache Tomcat
2022-02-09 23:01:22
CVE-2020-11996
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github
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Uncontrolled Resource Consumption in Apache Tomcat
2022-02-09 23:01:22
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[ASA-202006-16] tomcat8: denial of service
2020-06-28 00:00:00
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CVE-2020-11996
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veracode
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2020-06-26 07:34:58
nvd
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CVE-2020-11996
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redhat
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(RHSA-2020:5173) Moderate: Red Hat JBoss Web Server 5.4 security release
2020-11-23 12:01:21
(RHSA-2020:5170) Moderate: Red Hat JBoss Web Server 5.4 security release
2020-11-23 12:00:02
(RHSA-2021:0292) Important: Red Hat support for Spring Boot 2.3.6 security update
2021-02-02 10:21:06
ibm
ibm
Security Bulletin: App Connect Professional is affected by Apache Tomcat vulnerabilities.
2020-10-07 13:41:00
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2020-08-17 09:36:06
Security Bulletin: Multiple Apache Tomcat Vulnerabilities Affect IBM Control Center
2021-05-14 21:27:15
cisa
cisa
Apache Releases Security Advisory for Apache Tomcat
2020-06-26 00:00:00
f5
f5
K19240391 : Apache Tomcat vulnerability CVE-2020-11996
2020-07-07 00:00:00
checkpoint_advisories
checkpoint_advisories
Apache Tomcat Denial of Service (CVE-2020-11996)
2021-11-14 00:00:00
redhatcve
redhatcve
CVE-2020-11996
2020-06-26 13:50:58
debiancve
debiancve
CVE-2020-11996
2020-06-26 17:15:10
debian
debian
[SECURITY] [DLA 2279-1] tomcat8 security update
2020-07-12 21:11:35
[SECURITY] [DSA 4627-1] tomcat9 security update
2020-07-17 18:07:40
photon
photon
Important Photon OS Security Update - PHSA-2020-0114
2020-07-16 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2020-1.0-0308
2020-07-15 00:00:00
Important Photon OS Security Update - PHSA-2020-3.0-0114
2020-07-16 00:00:00
freebsd
freebsd
Apache Tomcat -- Multiple Vulnerabilities
2020-07-05 00:00:00
mageia
mageia
Updated tomcat packages fix security vulnerability
2020-08-18 21:47:25
atlassian
atlassian
Upgrade Tomcat to version 9.0.37
2020-06-29 13:40:00
Upgrade Tomcat to version 9.0.37
2020-06-29 13:40:00
Upgrade the bundled version of Apache Tomcat to 8.5.57
2020-07-17 15:19:11
attackerkb
attackerkb
CVE-2020-1938
2020-02-24 00:00:00
ubuntu
ubuntu
Tomcat vulnerabilities
2020-10-21 00:00:00
symantec
symantec
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2021-03-16 19:59:07
oracle
oracle
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Oracle Critical Patch Update Advisory - October 2020
2020-10-20 00:00:00

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.8%

JSON
Related for CVE-2020-11996
tomcat3kaspersky1nessus20prion1openvas13cvelist1suse2osv6github1archlinux1ubuntucve1veracode1nvd1redhat5ibm6cisa1f51checkpoint_advisories1redhatcve1debiancve1debian2photon6freebsd1mageia1atlassian4attackerkb1ubuntu1symantec1oracle2