UBUNTU-CVE-2025-4476

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Source
https://ubuntu.com/security/CVE-2025-4476
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4476.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-4476
Upstream
Downstream
Related
Published
2025-05-16T18:16:00Z
Modified
2025-10-24T05:16:32Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically crafted domain parameter within the WWW-Authenticate header. Processing this malformed header can lead to a crash of the client application using libsoup. An attacker could exploit this by setting up a malicious HTTP server. If a user's application using the vulnerable libsoup library connects to this malicious server, it could result in a denial-of-service. Successful exploitation requires tricking a user's client application into connecting to the attacker's malicious server.

References

Affected packages

Ubuntu:20.04:LTS

libsoup2.4

Package

Name
libsoup2.4
Purl
pkg:deb/ubuntu/libsoup2.4@2.70.0-1ubuntu0.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.70.0-1ubuntu0.5

Affected versions

2.*

2.68.2-0ubuntu1
2.68.2-1
2.68.2-2
2.68.2-2build2
2.69.90-1
2.70.0-1
2.70.0-1ubuntu0.1
2.70.0-1ubuntu0.2
2.70.0-1ubuntu0.3
2.70.0-1ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.70.0-1ubuntu0.5",
            "binary_name": "gir1.2-soup-2.4"
        },
        {
            "binary_version": "2.70.0-1ubuntu0.5",
            "binary_name": "libsoup-gnome2.4-1"
        },
        {
            "binary_version": "2.70.0-1ubuntu0.5",
            "binary_name": "libsoup-gnome2.4-dev"
        },
        {
            "binary_version": "2.70.0-1ubuntu0.5",
            "binary_name": "libsoup2.4-1"
        },
        {
            "binary_version": "2.70.0-1ubuntu0.5",
            "binary_name": "libsoup2.4-dev"
        },
        {
            "binary_version": "2.70.0-1ubuntu0.5",
            "binary_name": "libsoup2.4-tests"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS

libsoup2.4

Package

Name
libsoup2.4
Purl
pkg:deb/ubuntu/libsoup2.4@2.74.2-3ubuntu0.5?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.74.2-3ubuntu0.5

Affected versions

2.*

2.72.0-3ubuntu3
2.74.1-1
2.74.2-2
2.74.2-3
2.74.2-3ubuntu0.1
2.74.2-3ubuntu0.2
2.74.2-3ubuntu0.3
2.74.2-3ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "gir1.2-soup-2.4"
        },
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "libsoup-gnome2.4-1"
        },
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "libsoup-gnome2.4-dev"
        },
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "libsoup2.4-1"
        },
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "libsoup2.4-common"
        },
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "libsoup2.4-dev"
        },
        {
            "binary_version": "2.74.2-3ubuntu0.5",
            "binary_name": "libsoup2.4-tests"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:24.04:LTS

libsoup2.4

Package

Name
libsoup2.4
Purl
pkg:deb/ubuntu/libsoup2.4@2.74.3-6ubuntu1.5?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.74.3-6ubuntu1.5

Affected versions

2.*

2.74.3-1
2.74.3-2
2.74.3-3
2.74.3-6
2.74.3-6build1
2.74.3-6ubuntu1
2.74.3-6ubuntu1.1
2.74.3-6ubuntu1.2
2.74.3-6ubuntu1.3
2.74.3-6ubuntu1.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "gir1.2-soup-2.4"
        },
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "libsoup-2.4-1"
        },
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "libsoup-gnome-2.4-1"
        },
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "libsoup-gnome2.4-dev"
        },
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "libsoup2.4-common"
        },
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "libsoup2.4-dev"
        },
        {
            "binary_version": "2.74.3-6ubuntu1.5",
            "binary_name": "libsoup2.4-tests"
        }
    ],
    "availability": "No subscription required"
}

libsoup3

Package

Name
libsoup3
Purl
pkg:deb/ubuntu/libsoup3@3.4.4-5ubuntu0.4?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.4-5ubuntu0.4

Affected versions

3.*

3.4.2-4
3.4.4-1
3.4.4-2
3.4.4-4
3.4.4-5
3.4.4-5build1
3.4.4-5build2
3.4.4-5ubuntu0.1
3.4.4-5ubuntu0.2
3.4.4-5ubuntu0.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.4.4-5ubuntu0.4",
            "binary_name": "gir1.2-soup-3.0"
        },
        {
            "binary_version": "3.4.4-5ubuntu0.4",
            "binary_name": "libsoup-3.0-0"
        },
        {
            "binary_version": "3.4.4-5ubuntu0.4",
            "binary_name": "libsoup-3.0-common"
        },
        {
            "binary_version": "3.4.4-5ubuntu0.4",
            "binary_name": "libsoup-3.0-dev"
        },
        {
            "binary_version": "3.4.4-5ubuntu0.4",
            "binary_name": "libsoup-3.0-tests"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:25.04

libsoup2.4

Package

Name
libsoup2.4
Purl
pkg:deb/ubuntu/libsoup2.4@2.74.3-10ubuntu0.3?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.74.3-10ubuntu0.3

Affected versions

2.*

2.74.3-7
2.74.3-8
2.74.3-8ubuntu1
2.74.3-8.1
2.74.3-9
2.74.3-10
2.74.3-10ubuntu0.1
2.74.3-10ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "gir1.2-soup-2.4"
        },
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "libsoup-2.4-1"
        },
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "libsoup-gnome-2.4-1"
        },
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "libsoup-gnome2.4-dev"
        },
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "libsoup2.4-common"
        },
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "libsoup2.4-dev"
        },
        {
            "binary_version": "2.74.3-10ubuntu0.3",
            "binary_name": "libsoup2.4-tests"
        }
    ],
    "availability": "No subscription required"
}

libsoup3

Package

Name
libsoup3
Purl
pkg:deb/ubuntu/libsoup3@3.6.5-1ubuntu0.1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.5-1ubuntu0.1

Affected versions

3.*

3.6.0-2
3.6.0-3
3.6.0-4
3.6.1-1
3.6.4-1
3.6.4-2
3.6.4-3
3.6.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.5-1ubuntu0.1",
            "binary_name": "gir1.2-soup-3.0"
        },
        {
            "binary_version": "3.6.5-1ubuntu0.1",
            "binary_name": "libsoup-3.0-0"
        },
        {
            "binary_version": "3.6.5-1ubuntu0.1",
            "binary_name": "libsoup-3.0-common"
        },
        {
            "binary_version": "3.6.5-1ubuntu0.1",
            "binary_name": "libsoup-3.0-dev"
        },
        {
            "binary_version": "3.6.5-1ubuntu0.1",
            "binary_name": "libsoup-3.0-tests"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:16.04:LTS

libsoup2.4

Package

Name
libsoup2.4
Purl
pkg:deb/ubuntu/libsoup2.4@2.52.2-1ubuntu0.3+esm3?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.52.2-1ubuntu0.3+esm3

Affected versions

2.*

2.50.0-2debian1
2.52.1-1
2.52.2-1
2.52.2-1ubuntu0.1
2.52.2-1ubuntu0.2
2.52.2-1ubuntu0.3
2.52.2-1ubuntu0.3+esm1
2.52.2-1ubuntu0.3+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.52.2-1ubuntu0.3+esm3",
            "binary_name": "gir1.2-soup-2.4"
        },
        {
            "binary_version": "2.52.2-1ubuntu0.3+esm3",
            "binary_name": "libsoup-gnome2.4-1"
        },
        {
            "binary_version": "2.52.2-1ubuntu0.3+esm3",
            "binary_name": "libsoup-gnome2.4-dev"
        },
        {
            "binary_version": "2.52.2-1ubuntu0.3+esm3",
            "binary_name": "libsoup2.4-1"
        },
        {
            "binary_version": "2.52.2-1ubuntu0.3+esm3",
            "binary_name": "libsoup2.4-dev"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:Pro:18.04:LTS

libsoup2.4

Package

Name
libsoup2.4
Purl
pkg:deb/ubuntu/libsoup2.4@2.62.1-1ubuntu0.4+esm4?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.62.1-1ubuntu0.4+esm4

Affected versions

2.*

2.60.1-1
2.60.2-1
2.60.2-2
2.60.3-1
2.61.90-1
2.62.0-1
2.62.1-1
2.62.1-1ubuntu0.1
2.62.1-1ubuntu0.3
2.62.1-1ubuntu0.4
2.62.1-1ubuntu0.4+esm1
2.62.1-1ubuntu0.4+esm2
2.62.1-1ubuntu0.4+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.62.1-1ubuntu0.4+esm4",
            "binary_name": "gir1.2-soup-2.4"
        },
        {
            "binary_version": "2.62.1-1ubuntu0.4+esm4",
            "binary_name": "libsoup-gnome2.4-1"
        },
        {
            "binary_version": "2.62.1-1ubuntu0.4+esm4",
            "binary_name": "libsoup-gnome2.4-dev"
        },
        {
            "binary_version": "2.62.1-1ubuntu0.4+esm4",
            "binary_name": "libsoup2.4-1"
        },
        {
            "binary_version": "2.62.1-1ubuntu0.4+esm4",
            "binary_name": "libsoup2.4-dev"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:Pro:22.04:LTS

libsoup3

Package

Name
libsoup3
Purl
pkg:deb/ubuntu/libsoup3@3.0.7-0ubuntu1+esm4?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.7-0ubuntu1+esm4

Affected versions

3.*

3.0.4-2
3.0.4-3
3.0.5-1
3.0.7-0ubuntu1
3.0.7-0ubuntu1+esm1
3.0.7-0ubuntu1+esm2
3.0.7-0ubuntu1+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.7-0ubuntu1+esm4",
            "binary_name": "gir1.2-soup-3.0"
        },
        {
            "binary_version": "3.0.7-0ubuntu1+esm4",
            "binary_name": "libsoup-3.0-0"
        },
        {
            "binary_version": "3.0.7-0ubuntu1+esm4",
            "binary_name": "libsoup-3.0-common"
        },
        {
            "binary_version": "3.0.7-0ubuntu1+esm4",
            "binary_name": "libsoup-3.0-dev"
        },
        {
            "binary_version": "3.0.7-0ubuntu1+esm4",
            "binary_name": "libsoup-3.0-tests"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}