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Ubuntu: (Multiple Advisories) (CVE-2019-0199): Tomcat vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2019-0199): Tomcat vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
04/10/2019
Created
09/13/2019
Added
09/11/2019
Modified
09/19/2019

Description

The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

Solution(s)

  • ubuntu-upgrade-libtomcat8-java
  • ubuntu-upgrade-libtomcat9-java
  • ubuntu-upgrade-tomcat8
  • ubuntu-upgrade-tomcat9

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