USN-8117-1

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Source
https://ubuntu.com/security/notices/USN-8117-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8117-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8117-1
Upstream
Related
Published
2026-03-23T14:30:05Z
Modified
2026-04-27T18:45:29.442590Z
Summary
strongswan vulnerability
Details

Kazuma Matsumoto discovered that strongSwan incorrectly handled EAP-TTLS AVPs when using the eap-ttls plugin. An attacker could possibly use this issue to cause strongSwan to consume resources and crash, resulting in a denial of service.

References

Affected packages

Ubuntu:22.04:LTS / strongswan

Package

Name
strongswan
Purl
pkg:deb/ubuntu/strongswan@5.9.5-2ubuntu2.5?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.9.5-2ubuntu2.5

Affected versions

5.*
5.9.1-1ubuntu3
5.9.1-1ubuntu3.1
5.9.4-1ubuntu1
5.9.4-1ubuntu2
5.9.4-1ubuntu3
5.9.4-1ubuntu4
5.9.5-2ubuntu1
5.9.5-2ubuntu2
5.9.5-2ubuntu2.1
5.9.5-2ubuntu2.2
5.9.5-2ubuntu2.3
5.9.5-2ubuntu2.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "charon-cmd",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "charon-systemd",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "libcharon-extauth-plugins",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "libcharon-extra-plugins",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "libstrongswan",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "libstrongswan-extra-plugins",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "libstrongswan-standard-plugins",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-charon",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-libcharon",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-nm",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-pki",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-scepclient",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-starter",
            "binary_version": "5.9.5-2ubuntu2.5"
        },
        {
            "binary_name": "strongswan-swanctl",
            "binary_version": "5.9.5-2ubuntu2.5"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-25075",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8117-1.json"

Ubuntu:24.04:LTS / strongswan

Package

Name
strongswan
Purl
pkg:deb/ubuntu/strongswan@5.9.13-2ubuntu4.24.04.2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.9.13-2ubuntu4.24.04.2

Affected versions

5.*
5.9.11-1ubuntu1
5.9.11-1ubuntu2
5.9.12-1ubuntu1
5.9.13-2ubuntu1
5.9.13-2ubuntu3
5.9.13-2ubuntu4
5.9.13-2ubuntu4.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "charon-cmd",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "charon-systemd",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "libcharon-extauth-plugins",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "libcharon-extra-plugins",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "libstrongswan",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "libstrongswan-extra-plugins",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "libstrongswan-standard-plugins",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan-charon",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan-libcharon",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan-nm",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan-pki",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan-starter",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        },
        {
            "binary_name": "strongswan-swanctl",
            "binary_version": "5.9.13-2ubuntu4.24.04.2"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-25075",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8117-1.json"

Ubuntu:25.10 / strongswan

Package

Name
strongswan
Purl
pkg:deb/ubuntu/strongswan@6.0.1-6ubuntu4.2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.1-6ubuntu4.2

Affected versions

5.*
5.9.13-2ubuntu4
5.9.13-2ubuntu5
6.*
6.0.1-6ubuntu2
6.0.1-6ubuntu4
6.0.1-6ubuntu4.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "charon-cmd",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "charon-systemd",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "libcharon-extauth-plugins",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "libcharon-extra-plugins",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "libstrongswan",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "libstrongswan-extra-plugins",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "libstrongswan-standard-plugins",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan-charon",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan-libcharon",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan-nm",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan-pki",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan-starter",
            "binary_version": "6.0.1-6ubuntu4.2"
        },
        {
            "binary_name": "strongswan-swanctl",
            "binary_version": "6.0.1-6ubuntu4.2"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-25075",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8117-1.json"