CVE-2020-13934

Published: 14 July 2020

An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
tomcat8 Launchpad, Ubuntu, Debian	kinetic	Does not exist
	hirsute	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	bionic	Needs triage
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	impish	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Not vulnerable (code not present)
	Patches: upstream: https://github.com/apache/tomcat/commit/923d834500802a61779318911d7898bd85fc950e
tomcat9 Launchpad, Ubuntu, Debian	kinetic	Not vulnerable (9.0.37-3)
	groovy	Not vulnerable (9.0.37-3)
	hirsute	Not vulnerable (9.0.37-3)
	lunar	Not vulnerable (9.0.37-3)
	bionic	Needs triage
	eoan	Ignored (end of life)
	focal	Released (9.0.31-1ubuntu0.1)
	impish	Not vulnerable (9.0.37-3)
	jammy	Not vulnerable (9.0.37-3)
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	Patches: upstream: https://github.com/apache/tomcat/commit/172977f04a5215128f1e278a688983dcd230f399 (9.0.37)
tomcat6 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	impish	Does not exist
	trusty	Needs triage
	upstream	Needs triage
	xenial	Needs triage
tomcat7 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Needs triage
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	impish	Does not exist
	trusty	Not vulnerable
	upstream	Needs triage
	xenial	Needs triage

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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