USN-7898-1

Joshua Rogers discovered that OpenVPN incorrectly handled HMAC verification checks. A remote attacker could possibly use this issue to bypass source IP address validation.

References

Affected packages

Ubuntu:24.04:LTS / openvpn

Package

Name: openvpn
Purl: pkg:deb/ubuntu/openvpn@2.6.14-0ubuntu0.24.04.3?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.6.14-0ubuntu0.24.04.3

Affected versions

2.*

2.6.5-0ubuntu1

2.6.7-1ubuntu1

2.6.9-1ubuntu2

2.6.9-1ubuntu3

2.6.9-1ubuntu4

2.6.9-1ubuntu4.1

2.6.12-0ubuntu0.24.04.1

2.6.12-0ubuntu0.24.04.3

2.6.14-0ubuntu0.24.04.1

2.6.14-0ubuntu0.24.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "openvpn",
            "binary_version": "2.6.14-0ubuntu0.24.04.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-13086",
            "severity": [
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
                    "type": "CVSS_V4"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7898-1.json"

Ubuntu:25.10 / openvpn