CVE-2019-10072

Apache Tomcat reserveWindowSize Denial-Of-Service Vulnerability

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

La solución para el CVE-2019-0199 estaba incompleta y no abordaba el agotamiento de la ventana de conexión HTTP/2 al escribir en de Apache Tomcat versiones desde 9.0.0.M1 hasta 9.0.19 y 8.5.0 hasta 8.5.40. Al no enviar mensajes de WINDOW_UPDATE para la ventana de conexión (stream 0), los clientes fueron habilitados para causar que los hilos (subprocesos) del lado del servidor se bloquearan eventualmente conllevando al agotamiento del hilo (subproceso) y a una DoS.

This vulnerability allows remote attackers to create a denial-of-service condition on vulnerable installations of Apache Tomcat. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of HTTP2 requests. A crafted HTTP2 request can create a deadlock on a worker thread. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: John Simpson of Trend Micro Security Research

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-03-26 CVE Reserved
2019-06-21 CVE Published
2024-06-14 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-667: Improper Locking

CAPEC

References (22)

URL	Tag	Source
http://www.securityfocus.com/bid/108874	Vdb Entry
https://lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7f1491c8d79d98b48c6b9f0fa6a%40%3Cannounce.tomcat.apache.org%3E	X_refsource_misc
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E	Mailing List
https://security.netapp.com/advisory/ntap-20190625-0002	X_refsource_confirm
https://support.f5.com/csp/article/K17321505	X_refsource_confirm
https://www.oracle.com/security-alerts/cpuApr2021.html	X_refsource_misc
https://www.oracle.com/security-alerts/cpuapr2020.html	X_refsource_misc
https://www.oracle.com/security-alerts/cpujan2020.html	X_refsource_misc
https://www.oracle.com/security-alerts/cpuoct2020.html	X_refsource_misc
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html	X_refsource_misc
https://www.synology.com/security/advisory/Synology_SA_19_29	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html	2023-12-08
https://access.redhat.com/errata/RHSA-2019:3929	2023-12-08
https://access.redhat.com/errata/RHSA-2019:3931	2023-12-08
https://usn.ubuntu.com/4128-1	2023-12-08
https://usn.ubuntu.com/4128-2	2023-12-08
https://www.debian.org/security/2020/dsa-4680	2023-12-08
https://access.redhat.com/security/cve/CVE-2019-10072	2019-11-20
https://bugzilla.redhat.com/show_bug.cgi?id=1723708	2019-11-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				>= 8.5.0 <= 8.5.40 Search vendor "Apache" for product "Tomcat" and version " >= 8.5.0 <= 8.5.40"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				>= 9.0.1 <= 9.0.19 Search vendor "Apache" for product "Tomcat" and version " >= 9.0.1 <= 9.0.19"		-		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone1		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone10		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone11		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone12		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone13		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone14		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone15		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone16		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone17		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone18		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone19		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone2		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone20		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone21		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone22		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone23		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone24		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone25		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone26		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone27		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone3		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone4		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone5		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone6		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone7		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone8		Affected
Apache Search vendor "Apache"		Tomcat Search vendor "Apache" for product "Tomcat"				9.0.0 Search vendor "Apache" for product "Tomcat" and version "9.0.0"		milestone9		Affected