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CVE-2020-13934

Apache Tomcat

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.

Exploitation status

  • A vendor advisory or patch reference has been published.

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, no account is needed.
  • Beyond that, no action by a user is required.

Scoring

CVSS
7.5 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-401
Assigned by
security@apache.org

Dates

Published
2020-07-14
Last modified
2026-08-25
Sources
NVD

Affected products

  • Apache Tomcat8.5.1 - 8.5.56, 9.0.1 - 9.0.36, 9.0.0, 10.0.0
  • Debian Debian Linux9.0, 10.0
  • Netapp Oncommand System Manager3.0.0 - 3.1.3
  • Opensuse Leap15.1, 15.2
  • Canonical Ubuntu Linux20.04
  • Oracle Agile Engineering Data Management6.2.1.0
  • Oracle Agile Product Lifecycle Management9.3.3, 9.3.5, 9.3.6
  • Oracle Communications Instant Messaging Server10.0.1.5.0
  • Oracle Fmw Platform12.2.1.3.0, 12.2.1.4.0
  • Oracle Instantis Enterprisetrack17.1, 17.2, 17.3
  • Oracle Managed File Transfer12.2.1.3.0, 12.2.1.4.0
  • Oracle Mysql Enterprise Monitor- 8.0.21

As listed in the NVD configuration data. Not a statement about your estate.

References