UBUNTU-CVE-2025-23016

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Source
https://ubuntu.com/security/CVE-2025-23016
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-23016
Upstream
Downstream
Related
Published
2025-01-10T12:15:00Z
Modified
2026-04-22T15:38:47.451584Z
Severity
  • 9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.

References

Affected packages

Ubuntu:16.04:LTS
libfcgi

Package

Name
libfcgi
Purl
pkg:deb/ubuntu/libfcgi@2.4.0-8.3?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.4.0-8.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.0-8.3",
            "binary_name": "libfcgi0ldbl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"
Ubuntu:18.04:LTS
libfcgi

Package

Name
libfcgi
Purl
pkg:deb/ubuntu/libfcgi@2.4.0-10?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.4.0-8.4
2.4.0-10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.0-10",
            "binary_name": "libfcgi-bin"
        },
        {
            "binary_version": "2.4.0-10",
            "binary_name": "libfcgi0ldbl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"
Ubuntu:20.04:LTS
libfcgi

Package

Name
libfcgi
Purl
pkg:deb/ubuntu/libfcgi@2.4.0-10build1?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.4.0-10
2.4.0-10build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.0-10build1",
            "binary_name": "libfcgi-bin"
        },
        {
            "binary_version": "2.4.0-10build1",
            "binary_name": "libfcgi0ldbl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"
Ubuntu:22.04:LTS
libfcgi

Package

Name
libfcgi
Purl
pkg:deb/ubuntu/libfcgi@2.4.2-2ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.2-2ubuntu0.1

Affected versions

2.*
2.4.2-2build1
2.4.2-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.2-2ubuntu0.1",
            "binary_name": "libfcgi-bin"
        },
        {
            "binary_version": "2.4.2-2ubuntu0.1",
            "binary_name": "libfcgi0ldbl"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"
Ubuntu:24.04:LTS
libfcgi

Package

Name
libfcgi
Purl
pkg:deb/ubuntu/libfcgi@2.4.2-2.1ubuntu0.24.04.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.2-2.1ubuntu0.24.04.1

Affected versions

2.*
2.4.2-2build2
2.4.2-2.1
2.4.2-2.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.2-2.1ubuntu0.24.04.1",
            "binary_name": "libfcgi-bin"
        },
        {
            "binary_version": "2.4.2-2.1ubuntu0.24.04.1",
            "binary_name": "libfcgi0t64"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"
Ubuntu:25.10
libfcgi

Package

Name
libfcgi
Purl
pkg:deb/ubuntu/libfcgi@2.4.5-0.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.5-0.1

Affected versions

2.*
2.4.2-2.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.5-0.1",
            "binary_name": "libfcgi-bin"
        },
        {
            "binary_version": "2.4.5-0.1",
            "binary_name": "libfcgi0t64"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-23016.json"