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CVE

CWE

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CVE-2020-11996

Published: Jun 26, 2020

Modified: Aug 4, 2024

PUBLISHED

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.

Vendor	Product	Versions
Apache	Apache Tomcat	affected `10.0.0-M1 to 10.0.0-M5` affected `9.0.0.M1 to 9.0.35` affected `8.5.0 to 8.5.55`

References

https://lists.apache.org/thread.html/r5541ef6b6b68b49f76fc4c45695940116da2bcbe0312ef204a00a2e0%40%3Cannounce.tomcat.apache.org%3E

x_refsource_CONFIRM

[ofbiz-notifications] 20200628 [jira] [Updated] (OFBIZ-11847) CLONE - Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200628 [jira] [Closed] (OFBIZ-11847) CLONE - Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200628 [jira] [Created] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200628 [jira] [Created] (OFBIZ-11847) CLONE - Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-commits] 20200628 [ofbiz-framework] branch release18.12 updated: Fixed: Upgrades Tomcat to 9.0.36 due to CVE-2020-11996 (OFBIZ-11848)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200628 [jira] [Closed] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200628 [jira] [Commented] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-commits] 20200628 [ofbiz-framework] branch release17.12 updated: Fixed: Upgrades Tomcat to 9.0.36 due to CVE-2020-11996 (OFBIZ-11848)

mailing-list

x_refsource_MLIST

[ofbiz-commits] 20200628 [ofbiz-framework] branch trunk updated: Fixed: Upgrades Tomcat to 9.0.36 due to CVE-2020-11996 (OFBIZ-11848)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200701 [jira] [Reopened] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200703 [jira] [Comment Edited] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200703 [jira] [Closed] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[ofbiz-notifications] 20200703 [jira] [Commented] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

[debian-lts-announce] 20200712 [SECURITY] [DLA 2279-1] tomcat8 security update

mailing-list

x_refsource_MLIST

vendor-advisory

x_refsource_DEBIAN

openSUSE-SU-2020:1051

vendor-advisory

x_refsource_SUSE

openSUSE-SU-2020:1063

vendor-advisory

x_refsource_SUSE

[tomcat-users] 20201008 Is Tomcat7 supports HTTP2

mailing-list

x_refsource_MLIST

https://www.oracle.com/security-alerts/cpuoct2020.html

x_refsource_MISC

https://security.netapp.com/advisory/ntap-20200709-0002/

x_refsource_CONFIRM

vendor-advisory

x_refsource_UBUNTU

https://www.oracle.com/security-alerts/cpujan2021.html

x_refsource_MISC

[ofbiz-notifications] 20210301 [jira] [Updated] (OFBIZ-11848) Upgrade Tomcat from 9.0.34 to 9.0.36 (CVE-2020-11996)

mailing-list

x_refsource_MLIST

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