UBUNTU-CVE-2025-11679

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Source

https://ubuntu.com/security/CVE-2025-11679

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-11679

Upstream

CVE-2025-11679

Withdrawn

2026-02-12T05:22:01Z

Published

2025-10-20T14:15:00Z

Modified

2026-02-12T06:33:14Z

Severity

5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big height dimension.

References

Affected packages

Ubuntu:16.04:LTS

libwebsockets

Package

Name: libwebsockets
Purl: pkg:deb/ubuntu/libwebsockets@1.7.1-1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.2.2-1

1.6.0-3

1.6.0-4

1.6.0-5

1.6.1-1

1.7.0-1ubuntu1

1.7.0-2

1.7.1-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libwebsockets-dev",
            "binary_version": "1.7.1-1"
        },
        {
            "binary_name": "libwebsockets-test-server",
            "binary_version": "1.7.1-1"
        },
        {
            "binary_name": "libwebsockets-test-server-common",
            "binary_version": "1.7.1-1"
        },
        {
            "binary_name": "libwebsockets7",
            "binary_version": "1.7.1-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json"

Ubuntu:18.04:LTS

libwebsockets

Package

Name: libwebsockets
Purl: pkg:deb/ubuntu/libwebsockets@2.0.3-3build1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.0.3-3

2.0.3-3build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libwebsockets-dev",
            "binary_version": "2.0.3-3build1"
        },
        {
            "binary_name": "libwebsockets-test-server",
            "binary_version": "2.0.3-3build1"
        },
        {
            "binary_name": "libwebsockets-test-server-common",
            "binary_version": "2.0.3-3build1"
        },
        {
            "binary_name": "libwebsockets8",
            "binary_version": "2.0.3-3build1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json"

Ubuntu:20.04:LTS

libwebsockets

Package

Name: libwebsockets
Purl: pkg:deb/ubuntu/libwebsockets@3.2.1-3?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.0.3-3build1

3.*

3.2.1-3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libwebsockets-dev",
            "binary_version": "3.2.1-3"
        },
        {
            "binary_name": "libwebsockets-test-server",
            "binary_version": "3.2.1-3"
        },
        {
            "binary_name": "libwebsockets-test-server-common",
            "binary_version": "3.2.1-3"
        },
        {
            "binary_name": "libwebsockets15",
            "binary_version": "3.2.1-3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json"

Ubuntu:22.04:LTS

libwebsockets

Package

Name: libwebsockets
Purl: pkg:deb/ubuntu/libwebsockets@4.0.20-2ubuntu1?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.0.20-2

4.0.20-2ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libwebsockets-dev",
            "binary_version": "4.0.20-2ubuntu1"
        },
        {
            "binary_name": "libwebsockets-test-server",
            "binary_version": "4.0.20-2ubuntu1"
        },
        {
            "binary_name": "libwebsockets-test-server-common",
            "binary_version": "4.0.20-2ubuntu1"
        },
        {
            "binary_name": "libwebsockets16",
            "binary_version": "4.0.20-2ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json"

Ubuntu:24.04:LTS

libwebsockets

Package

Name: libwebsockets
Purl: pkg:deb/ubuntu/libwebsockets@4.3.3-1.1build3?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.3.2-4

4.3.3-1

4.3.3-1.1build1

4.3.3-1.1build2

4.3.3-1.1build3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libwebsockets-dev",
            "binary_version": "4.3.3-1.1build3"
        },
        {
            "binary_name": "libwebsockets-evlib-ev",
            "binary_version": "4.3.3-1.1build3"
        },
        {
            "binary_name": "libwebsockets-evlib-glib",
            "binary_version": "4.3.3-1.1build3"
        },
        {
            "binary_name": "libwebsockets-evlib-uv",
            "binary_version": "4.3.3-1.1build3"
        },
        {
            "binary_name": "libwebsockets-test-server",
            "binary_version": "4.3.3-1.1build3"
        },
        {
            "binary_name": "libwebsockets-test-server-common",
            "binary_version": "4.3.3-1.1build3"
        },
        {
            "binary_name": "libwebsockets19t64",
            "binary_version": "4.3.3-1.1build3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json"

Ubuntu:25.10

libwebsockets

Package

Name: libwebsockets
Purl: pkg:deb/ubuntu/libwebsockets@4.3.5-1?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.3.5-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libwebsockets-dev",
            "binary_version": "4.3.5-1"
        },
        {
            "binary_name": "libwebsockets-evlib-ev",
            "binary_version": "4.3.5-1"
        },
        {
            "binary_name": "libwebsockets-evlib-glib",
            "binary_version": "4.3.5-1"
        },
        {
            "binary_name": "libwebsockets-evlib-uv",
            "binary_version": "4.3.5-1"
        },
        {
            "binary_name": "libwebsockets-test-server",
            "binary_version": "4.3.5-1"
        },
        {
            "binary_name": "libwebsockets-test-server-common",
            "binary_version": "4.3.5-1"
        },
        {
            "binary_name": "libwebsockets19t64",
            "binary_version": "4.3.5-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11679.json"