UBUNTU-CVE-2019-0199

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Source
https://ubuntu.com/security/CVE-2019-0199
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-0199.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-0199
Upstream
Published
2019-04-10T15:29:00Z
Modified
2025-07-18T16:44:54Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:18.04:LTS / tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.5.39-1ubuntu1~18.04.1

Affected versions

8.*

8.5.21-1ubuntu1
8.5.29-1
8.5.30-1
8.5.30-1ubuntu1
8.5.30-1ubuntu1.2
8.5.30-1ubuntu1.3
8.5.30-1ubuntu1.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "libtomcat8-embed-java"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "libtomcat8-java"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "tomcat8"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "tomcat8-admin"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "tomcat8-common"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "tomcat8-docs"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "tomcat8-examples"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.1",
            "binary_name": "tomcat8-user"
        }
    ],
    "availability": "No subscription required"
}