UBUNTU-CVE-2026-127029

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Source
https://ubuntu.com/security/CVE-2026-127029
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-127029
Upstream
Published
2026-11-13T00:00:00Z
Modified
2026-11-13T21:05:40Z
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

A flaw was found in freeradius's Extensible Authentication Protocol Method for Subscriber Identity Module (EAP-SIM) module. When handling authentication requests, the server copies a client-supplied identity into an internal structure without properly checking its length against a fixed-size buffer. An unauthenticated remote attacker can exploit this issue by sending specially crafted EAP-SIM messages, triggering a stack buffer overflow that crashes the service and results in a Denial of Service (DoS).

References

Affected packages

Ubuntu:18.04:LTS
freeradius

Package

Name
freeradius
Purl
pkg:deb/ubuntu/freeradius?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.0.15+dfsg-1ubuntu2
3.0.16+dfsg-1ubuntu2
3.0.16+dfsg-1ubuntu3
3.0.16+dfsg-1ubuntu3.1
3.0.16+dfsg-1ubuntu3.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-config",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-redis",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-rest",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        },
        {
            "binary_name": "libfreeradius3",
            "binary_version": "3.0.16+dfsg-1ubuntu3.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"
Ubuntu:20.04:LTS
freeradius

Package

Name
freeradius
Purl
pkg:deb/ubuntu/freeradius?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.0.19+dfsg-3
3.0.19+dfsg-3build1
3.0.20+dfsg-1
3.0.20+dfsg-3
3.0.20+dfsg-3build1
3.0.20+dfsg-3ubuntu0.1
3.0.20+dfsg-3ubuntu0.2
3.0.20+dfsg-3ubuntu0.4
3.0.20+dfsg-3ubuntu0.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-config",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-python3",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-redis",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-rest",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        },
        {
            "binary_name": "libfreeradius3",
            "binary_version": "3.0.20+dfsg-3ubuntu0.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"
Ubuntu:22.04:LTS
freeradius

Package

Name
freeradius
Purl
pkg:deb/ubuntu/freeradius?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.0.21+dfsg-2.2
3.0.21+dfsg-3
3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu2
3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3
3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.1
3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.2
3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.3
3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-config",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-python3",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-redis",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-rest",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        },
        {
            "binary_name": "libfreeradius3",
            "binary_version": "3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"
Ubuntu:24.04:LTS
freeradius

Package

Name
freeradius
Purl
pkg:deb/ubuntu/freeradius?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*
3.2.3+dfsg-2
3.2.3+dfsg-2build2
3.2.3+dfsg-2build6
3.2.3+dfsg-2build7
3.2.5+dfsg-3~ubuntu24.04.1
3.2.5+dfsg-3~ubuntu24.04.2
3.2.5+dfsg-3~ubuntu24.04.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-config",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-python3",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-redis",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-rest",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        },
        {
            "binary_name": "libfreeradius3",
            "binary_version": "3.2.5+dfsg-3~ubuntu24.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"
Ubuntu:26.04:LTS
freeradius

Package

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

Affected ranges

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

Affected versions

3.*
3.2.7+dfsg-1ubuntu2
3.2.8+dfsg-1ubuntu1
3.2.8+dfsg-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-config",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-python3",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-redis",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-rest",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        },
        {
            "binary_name": "libfreeradius3",
            "binary_version": "3.2.8+dfsg-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"
Ubuntu:26.10
freeradius

Package

Name
freeradius
Purl
pkg:deb/ubuntu/freeradius?arch=source&distro=stonking

Affected ranges

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

Affected versions

3.*
3.2.8+dfsg-1ubuntu2
3.2.8+dfsg-1ubuntu4
3.2.10+dfsg-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-config",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-dhcp",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-memcached",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-python3",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-redis",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-rest",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "freeradius-yubikey",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        },
        {
            "binary_name": "libfreeradius3",
            "binary_version": "3.2.10+dfsg-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"
Ubuntu:Pro:16.04:LTS
freeradius

Package

Name
freeradius
Purl
pkg:deb/ubuntu/freeradius?arch=source&distro=esm-infra%2Fxenial

Affected ranges

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

Affected versions

2.*
2.1.12+dfsg-1.3ubuntu5
2.2.8+dfsg-0.1
2.2.8+dfsg-0.1build1
2.2.8+dfsg-0.1build2
2.2.8+dfsg-0.1ubuntu0.1
2.2.8+dfsg-0.1ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeradius",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-common",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-iodbc",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-krb5",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-ldap",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-mysql",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-postgresql",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "freeradius-utils",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        },
        {
            "binary_name": "libfreeradius2",
            "binary_version": "2.2.8+dfsg-0.1ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-127029.json"