UBUNTU-CVE-2020-11996

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Source
https://ubuntu.com/security/CVE-2020-11996
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11996.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-11996
Related
Published
2020-06-26T17:15:00Z
Modified
2024-10-15T14:07:26Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

References

Affected packages

Ubuntu:Pro:18.04:LTS / tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
8.5.39-1ubuntu1~18.04.1
8.5.39-1ubuntu1~18.04.2
8.5.39-1ubuntu1~18.04.3
8.5.39-1ubuntu1~18.04.3+esm1
8.5.39-1ubuntu1~18.04.3+esm2
8.5.39-1ubuntu1~18.04.3+esm3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

9.*

9.0.16-3~18.04.1
9.0.16-3ubuntu0.18.04.1
9.0.16-3ubuntu0.18.04.2
9.0.16-3ubuntu0.18.04.2+esm1
9.0.16-3ubuntu0.18.04.2+esm2
9.0.16-3ubuntu0.18.04.2+esm3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.1

Affected versions

9.*

9.0.24-1
9.0.27-1
9.0.31-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "libtomcat9-embed-java"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "libtomcat9-java"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "tomcat9"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "tomcat9-admin"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "tomcat9-common"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "tomcat9-docs"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "tomcat9-examples"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.1",
            "binary_name": "tomcat9-user"
        }
    ]
}