[email protected]CVE-2020-13934

HistoryJul 14, 2020 - 3:15 p.m.

CVE-2020-13934

2020-07-1415:15:11

CWE-401

CWE-476

[email protected]

web.nvd.nist.gov

484

apache tomcat

cve-2020-13934

h2c

http/2

denial of service

outofmemoryexception

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

7.3 High

AI Score

Confidence

High

0.912 High

EPSS

Percentile

98.9%

JSON

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.

Affected configurations

Vulners

NVD

Node

apachetomcatRange10.0.0-M1–10.0.0-M6

apachetomcatRange9.0.0.M5–9.0.36

apachetomcatRange8.5.1–8.5.56

CPENameOperatorVersion
apache:tomcatapache tomcatle8.5.56
apache:tomcatapache tomcatle9.0.36
apache:tomcatapache tomcateq9.0.0
apache:tomcatapache tomcateq10.0.0

CPE	Name	Operator	Version
apache:tomcat	apache tomcat	le	8.5.56
apache:tomcat	apache tomcat	le	9.0.36
apache:tomcat	apache tomcat	eq	9.0.0
apache:tomcat	apache tomcat	eq	10.0.0

CNA Affected

[
  {
    "product": "Apache Tomcat",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36, 8.5.1 to 8.5.56"
      }
    ]
  }
]