UBUNTU-CVE-2026-40719

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-40719
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40719.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40719
Upstream
  • CVE-2026-40719
Published
2026-04-15T07:16:00Z
Modified
2026-05-14T14:42:54.792790Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Deadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative nameserver address cannot be resolved.

References

Affected packages

Ubuntu:Pro:16.04:LTS / maradns

Package

Name
maradns
Purl
pkg:deb/ubuntu/maradns@2.0.13-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

2.*
2.0.11-1
2.0.13-1
2.0.13-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "duende",
            "binary_version": "2.0.13-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns",
            "binary_version": "2.0.13-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns-deadwood",
            "binary_version": "2.0.13-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns-docs",
            "binary_version": "2.0.13-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns-zoneserver",
            "binary_version": "2.0.13-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40719.json"

Ubuntu:Pro:18.04:LTS / maradns

Package

Name
maradns
Purl
pkg:deb/ubuntu/maradns@2.0.13-1.2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

2.*
2.0.13-1.2
2.0.13-1.2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "duende",
            "binary_version": "2.0.13-1.2ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns",
            "binary_version": "2.0.13-1.2ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns-deadwood",
            "binary_version": "2.0.13-1.2ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns-docs",
            "binary_version": "2.0.13-1.2ubuntu0.1~esm1"
        },
        {
            "binary_name": "maradns-zoneserver",
            "binary_version": "2.0.13-1.2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40719.json"

Ubuntu:20.04:LTS / maradns

Package

Name
maradns
Purl
pkg:deb/ubuntu/maradns@2.0.13-1.4+deb11u1build0.20.04.1?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.0.13-1.2build1
2.0.13-1.4
2.0.13-1.4build1
2.0.13-1.4+deb11u1build0.20.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "duende",
            "binary_version": "2.0.13-1.4+deb11u1build0.20.04.1"
        },
        {
            "binary_name": "maradns",
            "binary_version": "2.0.13-1.4+deb11u1build0.20.04.1"
        },
        {
            "binary_name": "maradns-deadwood",
            "binary_version": "2.0.13-1.4+deb11u1build0.20.04.1"
        },
        {
            "binary_name": "maradns-docs",
            "binary_version": "2.0.13-1.4+deb11u1build0.20.04.1"
        },
        {
            "binary_name": "maradns-zoneserver",
            "binary_version": "2.0.13-1.4+deb11u1build0.20.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40719.json"

Ubuntu:22.04:LTS / maradns

Package

Name
maradns
Purl
pkg:deb/ubuntu/maradns@2.0.13-1.4+deb11u1build0.22.04.1?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.0.13-1.4build2
2.0.13-1.4+deb11u1build0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "duende",
            "binary_version": "2.0.13-1.4+deb11u1build0.22.04.1"
        },
        {
            "binary_name": "maradns",
            "binary_version": "2.0.13-1.4+deb11u1build0.22.04.1"
        },
        {
            "binary_name": "maradns-deadwood",
            "binary_version": "2.0.13-1.4+deb11u1build0.22.04.1"
        },
        {
            "binary_name": "maradns-docs",
            "binary_version": "2.0.13-1.4+deb11u1build0.22.04.1"
        },
        {
            "binary_name": "maradns-zoneserver",
            "binary_version": "2.0.13-1.4+deb11u1build0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40719.json"

Ubuntu:24.04:LTS / maradns

Package

Name
maradns
Purl
pkg:deb/ubuntu/maradns@2.0.13-1.6?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.0.13-1.4ubuntu1
2.0.13-1.5
2.0.13-1.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "duende",
            "binary_version": "2.0.13-1.6"
        },
        {
            "binary_name": "maradns",
            "binary_version": "2.0.13-1.6"
        },
        {
            "binary_name": "maradns-deadwood",
            "binary_version": "2.0.13-1.6"
        },
        {
            "binary_name": "maradns-docs",
            "binary_version": "2.0.13-1.6"
        },
        {
            "binary_name": "maradns-zoneserver",
            "binary_version": "2.0.13-1.6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40719.json"