CVE-2019-10072

Publication date 21 June 2019

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

Status

Package Ubuntu Release Status
tomcat8 19.04 disco Not in release
18.10 cosmic Ignored end of life
18.04 LTS bionic
Fixed 8.5.39-1ubuntu1~18.04.3
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
tomcat9 19.04 disco
Fixed 9.0.16-3ubuntu0.19.04.1
18.10 cosmic Ignored end of life
18.04 LTS bionic
Fixed 9.0.16-3ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
tomcat8
tomcat9

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4128-2
    • Tomcat vulnerabilities
    • 18 September 2019
    • USN-4128-1
    • Tomcat vulnerabilities
    • 10 September 2019

Other references