UBUNTU-CVE-2026-44050

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Source
https://ubuntu.com/security/CVE-2026-44050
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-44050
Upstream
  • CVE-2026-44050
Downstream
Related
Published
2026-05-21T08:16:00Z
Modified
2026-06-09T13:00:20.004723212Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.

References

Affected packages

Ubuntu:25.10
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.1.2~ds-4
4.2.1~ds-1
4.2.3~ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "a2boot",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "atalkd",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "libatalk",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "macipgw",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "netatalk",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "netatalk-tests",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "netatalk-tools",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "papd",
            "binary_version": "4.2.3~ds-1"
        },
        {
            "binary_name": "timelord",
            "binary_version": "4.2.3~ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:26.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.2.3~ds-2.1ubuntu0.1

Affected versions

4.*
4.2.3~ds-1
4.2.3~ds-2
4.2.3~ds-2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "a2boot",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "atalkd",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "libatalk",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "macipgw",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "netatalk",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "netatalk-tests",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "netatalk-tools",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "papd",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        },
        {
            "binary_name": "timelord",
            "binary_version": "4.2.3~ds-2.1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:Pro:14.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.2-1ubuntu2.2+esm3

Affected versions

2.*
2.2.2-1ubuntu1
2.2.2-1ubuntu2
2.2.2-1ubuntu2.2
2.2.2-1ubuntu2.2+esm1
2.2.2-1ubuntu2.2+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "2.2.2-1ubuntu2.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:Pro:16.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.5-1ubuntu0.2+esm3

Affected versions

2.*
2.2.5-1
2.2.5-1ubuntu0.2
2.2.5-1ubuntu0.2+esm1
2.2.5-1ubuntu0.2+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "2.2.5-1ubuntu0.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:Pro:18.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.6-1ubuntu0.18.04.2+esm3

Affected versions

2.*
2.2.6-1
2.2.6-1ubuntu0.18.04.2
2.2.6-1ubuntu0.18.04.2+esm1
2.2.6-1ubuntu0.18.04.2+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "2.2.6-1ubuntu0.18.04.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:Pro:20.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.12~ds-4ubuntu0.20.04.4+esm1

Affected versions

3.*
3.1.12~ds-3
3.1.12~ds-4
3.1.12~ds-4ubuntu0.20.04.1
3.1.12~ds-4ubuntu0.20.04.3
3.1.12~ds-4ubuntu0.20.04.3+esm1
3.1.12~ds-4ubuntu0.20.04.4

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "3.1.12~ds-4ubuntu0.20.04.4+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:Pro:22.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.12~ds-9ubuntu0.22.04.4+esm1

Affected versions

3.*
3.1.12~ds-9
3.1.12~ds-9build1
3.1.12~ds-9ubuntu0.22.04.1
3.1.12~ds-9ubuntu0.22.04.3
3.1.12~ds-9ubuntu0.22.04.3+esm1
3.1.12~ds-9ubuntu0.22.04.4

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "3.1.12~ds-9ubuntu0.22.04.4+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"
Ubuntu:Pro:24.04:LTS
netatalk

Package

Name
netatalk
Purl
pkg:deb/ubuntu/netatalk?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.18~ds-1ubuntu0.1~esm2

Affected versions

3.*
3.1.15~ds-1ubuntu1
3.1.18~ds-1
3.1.18~ds-1build2
3.1.18~ds-1build4
3.1.18~ds-1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "netatalk",
            "binary_version": "3.1.18~ds-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44050.json"