CVE-2020-13934 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e403Cannounce.tomcat.apache.org3E https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0ff71cef38a96d9c6f5362aac8@3Cdev.tomcat.apache.org3E https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html https://security.netapp.com/advisory/ntap-20200724-0003/ https://usn.ubuntu.com/4596-1/ https://www.debian.org/security/2020/dsa-4727 https://www.oracle.com/security-alerts/cpuoct2020.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5