UBUNTU-CVE-2025-53506

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Source

https://ubuntu.com/security/CVE-2025-53506

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-53506.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-53506

Upstream

CVE-2025-53506

Published

2025-07-10T20:15:00Z

Modified

2025-11-06T05:28:45Z

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
Ubuntu - medium

Summary

[none]

Details

Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.

References

Affected packages

Ubuntu:25.04

tomcat10

Package

Name: tomcat10
Purl: pkg:deb/ubuntu/tomcat10@10.1.35-1ubuntu0.1?arch=source&distro=plucky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

10.*

10.1.25-1

10.1.31-1

10.1.33-1

10.1.34-1

10.1.35-1

10.1.35-1ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "libtomcat10-embed-java"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "libtomcat10-java"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "tomcat10"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "tomcat10-admin"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "tomcat10-common"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "tomcat10-docs"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "tomcat10-examples"
        },
        {
            "binary_version": "10.1.35-1ubuntu0.1",
            "binary_name": "tomcat10-user"
        }
    ]
}

Ubuntu:25.10

tomcat10

Package

Name: tomcat10
Purl: pkg:deb/ubuntu/tomcat10@10.1.40-1ubuntu1?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

10.*

10.1.35-1

10.1.40-1

10.1.40-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "libtomcat10-embed-java"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "libtomcat10-java"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "tomcat10"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "tomcat10-admin"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "tomcat10-common"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "tomcat10-docs"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "tomcat10-examples"
        },
        {
            "binary_version": "10.1.40-1ubuntu1",
            "binary_name": "tomcat10-user"
        }
    ]
}

tomcat11

Package

Name: tomcat11
Purl: pkg:deb/ubuntu/tomcat11@11.0.6-1?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

11.*

11.0.6-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "11.0.6-1",
            "binary_name": "libtomcat11-embed-java"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "libtomcat11-java"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "tomcat11"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "tomcat11-admin"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "tomcat11-common"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "tomcat11-docs"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "tomcat11-examples"
        },
        {
            "binary_version": "11.0.6-1",
            "binary_name": "tomcat11-user"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

tomcat9

Package

Name: tomcat9
Purl: pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2+esm7?arch=source&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

9.0.16-3ubuntu0.18.04.2+esm4

9.0.16-3ubuntu0.18.04.2+esm5

9.0.16-3ubuntu0.18.04.2+esm6

9.0.16-3ubuntu0.18.04.2+esm7

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "libtomcat9-embed-java"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "libtomcat9-java"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-admin"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-common"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-docs"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-examples"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-user"
        }
    ]
}

Ubuntu:Pro:20.04:LTS

tomcat9

Package

Name: tomcat9
Purl: pkg:deb/ubuntu/tomcat9@9.0.31-1ubuntu0.9+esm2?arch=source&distro=esm-apps/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

9.*

9.0.24-1

9.0.27-1

9.0.31-1

9.0.31-1ubuntu0.1

9.0.31-1ubuntu0.2

9.0.31-1ubuntu0.3

9.0.31-1ubuntu0.4

9.0.31-1ubuntu0.5

9.0.31-1ubuntu0.6

9.0.31-1ubuntu0.7

9.0.31-1ubuntu0.8

9.0.31-1ubuntu0.9

9.0.31-1ubuntu0.9+esm1

9.0.31-1ubuntu0.9+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "libtomcat9-embed-java"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "libtomcat9-java"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "tomcat9"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "tomcat9-admin"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "tomcat9-common"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "tomcat9-docs"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "tomcat9-examples"
        },
        {
            "binary_version": "9.0.31-1ubuntu0.9+esm2",
            "binary_name": "tomcat9-user"
        }
    ]
}

Ubuntu:Pro:22.04:LTS

tomcat9

Package

Name: tomcat9
Purl: pkg:deb/ubuntu/tomcat9@9.0.58-1ubuntu0.2+esm3?arch=source&distro=esm-apps/jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

9.*

9.0.43-3

9.0.54-1

9.0.55-1

9.0.58-1

9.0.58-1ubuntu0.1

9.0.58-1ubuntu0.1+esm1

9.0.58-1ubuntu0.1+esm2

9.0.58-1ubuntu0.1+esm3

9.0.58-1ubuntu0.1+esm4

9.0.58-1ubuntu0.2

9.0.58-1ubuntu0.2+esm1

9.0.58-1ubuntu0.2+esm2

9.0.58-1ubuntu0.2+esm3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "libtomcat9-embed-java"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "libtomcat9-java"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "tomcat9"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "tomcat9-admin"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "tomcat9-common"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "tomcat9-docs"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "tomcat9-examples"
        },
        {
            "binary_version": "9.0.58-1ubuntu0.2+esm3",
            "binary_name": "tomcat9-user"
        }
    ]
}

Ubuntu:Pro:24.04:LTS

tomcat10

Package

Name: tomcat10
Purl: pkg:deb/ubuntu/tomcat10@10.1.16-1ubuntu0.1~esm3?arch=source&distro=esm-apps/noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

10.*

10.1.10-1

10.1.14-1

10.1.15-1

10.1.16-1

10.1.16-1ubuntu0.1~esm1

10.1.16-1ubuntu0.1~esm2

10.1.16-1ubuntu0.1~esm3

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "libtomcat10-embed-java"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "libtomcat10-java"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "tomcat10"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "tomcat10-admin"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "tomcat10-common"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "tomcat10-docs"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "tomcat10-examples"
        },
        {
            "binary_version": "10.1.16-1ubuntu0.1~esm3",
            "binary_name": "tomcat10-user"
        }
    ]
}