CVE-2020-13935 Information

Description

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6 9.0.0.M1 to 9.0.36 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead 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://kc.mcafee.com/corporate/index?page=content&id=SB10332 https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651403Cannounce.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/4448-1/ 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