USN-7806-1

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

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7806-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-23013",
            "severity": [
                {
                    "type": "CVSS_V4",
                    "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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "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

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7806-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-23013",
            "severity": [
                {
                    "type": "CVSS_V4",
                    "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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "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

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7806-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-23013",
            "severity": [
                {
                    "type": "CVSS_V4",
                    "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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}