USN-7806-1

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Source
https://ubuntu.com/security/notices/USN-7806-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7806-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-7806-1
Upstream
Related
Published
2025-10-06T16:35:59.513199Z
Modified
2025-10-13T04:42:45Z
Summary
pam-u2f vulnerability
Details

It was discovered that PAM/U2F could allow for authentication bypass in some configurations. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.

References

Affected packages

Ubuntu:Pro:20.04:LTS / pam-u2f

Package

Name
pam-u2f
Purl
pkg:deb/ubuntu/pam-u2f@1.0.8-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.8-1ubuntu0.1~esm1

Affected versions

1.*

1.0.8-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.0.8-1ubuntu0.1~esm1",
            "binary_name": "libpam-u2f"
        },
        {
            "binary_version": "1.0.8-1ubuntu0.1~esm1",
            "binary_name": "pamu2fcfg"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "type": "CVSS_V4"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2025-23013"
            }
        ],
        "ecosystem": "Ubuntu:Pro:20.04:LTS"
    }
}

Ubuntu:22.04:LTS / pam-u2f

Package

Name
pam-u2f
Purl
pkg:deb/ubuntu/pam-u2f@1.1.0-1.1+deb12u1build0.22.04.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0-1.1+deb12u1build0.22.04.1

Affected versions

1.*

1.1.0-1.1
1.1.0-1.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.1.0-1.1+deb12u1build0.22.04.1",
            "binary_name": "libpam-u2f"
        },
        {
            "binary_version": "1.1.0-1.1+deb12u1build0.22.04.1",
            "binary_name": "pamu2fcfg"
        }
    ],
    "availability": "No subscription required"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "type": "CVSS_V4"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2025-23013"
            }
        ],
        "ecosystem": "Ubuntu:22.04:LTS"
    }
}

Ubuntu:24.04:LTS / pam-u2f

Package

Name
pam-u2f
Purl
pkg:deb/ubuntu/pam-u2f@1.1.0-1.1+deb12u1build0.24.04.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0-1.1+deb12u1build0.24.04.1

Affected versions

1.*

1.1.0-1.1build1
1.1.0-1.1build2
1.1.0-1.1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.1.0-1.1+deb12u1build0.24.04.1",
            "binary_name": "libpam-u2f"
        },
        {
            "binary_version": "1.1.0-1.1+deb12u1build0.24.04.1",
            "binary_name": "pamu2fcfg"
        }
    ],
    "availability": "No subscription required"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "type": "CVSS_V4"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2025-23013"
            }
        ],
        "ecosystem": "Ubuntu:24.04:LTS"
    }
}