UBUNTU-CVE-2026-19624

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Source
https://ubuntu.com/security/CVE-2026-19624
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-19624
Upstream
Published
2026-09-14T20:16:00Z
Modified
2026-09-16T14:01:42Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in NetworkManager-l2tp. The plugin writes attacker-controlled VPN connection properties (vpn.data and vpn.secrets values) unescaped into a generated ipsec.conf file that pluto loads as root. A local unprivileged user can create and activate their own L2TP VPN profile containing a newline-injected leftupdown directive; pluto executes that command as root when the IKE security association is established, resulting in local privilege escalation. This is the same bug class as CVE-2018-10900 (NetworkManager-vpnc).

References

Affected packages

Ubuntu:18.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.8-1
1.2.8-2build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "network-manager-l2tp",
            "binary_version":  "1.2.8-2build1"
        },
        {
            "binary_name":  "network-manager-l2tp-gnome",
            "binary_version":  "1.2.8-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"

Ubuntu:20.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.10-1
1.2.14-1
1.2.16-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "network-manager-l2tp",
            "binary_version":  "1.2.16-1"
        },
        {
            "binary_name":  "network-manager-l2tp-gnome",
            "binary_version":  "1.2.16-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"

Ubuntu:22.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.18-1build1
1.20.0-1
1.20.0-1build1
1.20.0-1build2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "network-manager-l2tp",
            "binary_version":  "1.20.0-1build2"
        },
        {
            "binary_name":  "network-manager-l2tp-gnome",
            "binary_version":  "1.20.0-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"

Ubuntu:24.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.8-1
1.20.10-1
1.20.12-1
1.20.12-1build1
1.20.12-1build2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "network-manager-l2tp",
            "binary_version":  "1.20.12-1build2"
        },
        {
            "binary_name":  "network-manager-l2tp-gnome",
            "binary_version":  "1.20.12-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"

Ubuntu:26.04:LTS / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.20-2
1.52.0-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "network-manager-l2tp",
            "binary_version":  "1.52.0-2"
        },
        {
            "binary_name":  "network-manager-l2tp-gnome",
            "binary_version":  "1.52.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"