UBUNTU-CVE-2021-25122

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Source
https://ubuntu.com/security/CVE-2021-25122
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25122.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-25122
Upstream
Downstream
Related
Published
2021-03-01T12:15:00Z
Modified
2025-07-18T16:46:40Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

References

Affected packages

Ubuntu:18.04:LTS / tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.0.16-3ubuntu0.18.04.2

Affected versions

9.*

9.0.16-3~18.04.1
9.0.16-3ubuntu0.18.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "tomcat9",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        },
        {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.16-3ubuntu0.18.04.2"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.3+esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.5.39-1ubuntu1~18.04.3+esm2

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

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libtomcat8-embed-java",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "libtomcat8-java",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "tomcat8",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "tomcat8-admin",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "tomcat8-common",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "tomcat8-docs",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "tomcat8-examples",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        },
        {
            "binary_name": "tomcat8-user",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm2"
        }
    ]
}

Ubuntu:20.04:LTS / tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9@9.0.31-1ubuntu0.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.0.31-1ubuntu0.2

Affected versions

9.*

9.0.24-1
9.0.27-1
9.0.31-1
9.0.31-1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "tomcat9",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.31-1ubuntu0.2"
        },
        {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.31-1ubuntu0.2"
        }
    ]
}