CVE-2020-17527

Apache Tomcat: Request header mix-up between HTTP/2 streams

Published: Dec 3, 2020Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-200

7.5HIGH

Description

While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-200

Affected Products

oracle

commercial·USaka oracle corp.

blockchain platformOn-premWeb App

Databases / data-warehouse-analytics

communications cloud native core binding support function

Communications

communications cloud native core policyOn-premDatabase

Databases / cache-message-queue

communications instant messaging serverOn-premNetwork Device

Communications / messaging-chat

instantis enterprisetrackOn-premWeb App

Enterprise Software / itsm-monitoring

mysql enterprise monitorOn-premDatabase

Databases / relational

sd-wan edgeOn-premNetwork Device

Networking Infrastructure / router-switch

workload managerOn-premWeb App

Databases / db-tooling

netapp

commercial·US

element plug-in

Hardware Firmware

oncommand system manager

Hardware Firmware

Apache Software Foundation

oss-project·USaka apache foundation

Apache TomcatOn-premWeb App

Networking Infrastructure / load-balancer-proxy

apache

oss-project·USaka apache httpd, apache http server

tomcatOn-premWeb App

Networking Infrastructure / load-balancer-proxy

debian

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

Maven

package-ecosystem

org.apache.tomcat:tomcat-coyote

OSS Libraries

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://lists.apache.org/thread.html/rce5ac9a40173651d540babce59f6f3825f12c6d4e886ba00823b11e5%40%3Cannounce.tomcat.apache.org%3E

lists.apache.org

https://lists.apache.org/thread.html/r8a227ac6a755a6406c1cc47dd48800e973d4cf13fe7fe68ac59c679c%40%3Cdev.tomcat.apache.org%3E

lists.apache.org

https://lists.apache.org/thread.html/raa0e9ad388c1e6fd1e301b5e080f9439f64cb4178119a86a4801cc53%40%3Cdev.tomcat.apache.org%3E

lists.apache.org

and 46 more references View all →

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