UBUNTU-CVE-2025-8736

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Source
https://ubuntu.com/security/CVE-2025-8736
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-8736
Upstream
Published
2025-08-08T19:15:00Z
Modified
2026-05-20T16:24:02Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

A vulnerability, which was classified as critical, has been found in GNU cflow up to 1.8. Affected by this issue is the function yylex of the file c.c of the component Lexer. The manipulation leads to buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

References

Affected packages

Ubuntu:20.04:LTS
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.6-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.6-4"
        },
        {
            "binary_name": "cflow-l10n",
            "binary_version": "1:1.6-4"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"
Ubuntu:22.04:LTS
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.6-4
1:1.6-6
1:1.7-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.7-2"
        },
        {
            "binary_name": "cflow-l10n",
            "binary_version": "1:1.7-2"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"
Ubuntu:24.04:LTS
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.7-4
1:1.7-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.7-5"
        },
        {
            "binary_name": "cflow-l10n",
            "binary_version": "1:1.7-5"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"
Ubuntu:25.10
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.7-5
1:1.8-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.8-1"
        },
        {
            "binary_name": "cflow-l10n",
            "binary_version": "1:1.8-1"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"
Ubuntu:26.04:LTS
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.8-1
1:1.8-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.8-1build1"
        },
        {
            "binary_name": "cflow-l10n",
            "binary_version": "1:1.8-1build1"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"
Ubuntu:Pro:16.04:LTS
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.4+dfsg1-3ubuntu1
1:1.4+dfsg1-3ubuntu1.16.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.4+dfsg1-3ubuntu1.16.04.1~esm1"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"
Ubuntu:Pro:18.04:LTS
cflow

Package

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

Affected ranges

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

Affected versions

1:1.*
1:1.4+dfsg1-3ubuntu1
1:1.4+dfsg1-3ubuntu1.18.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cflow",
            "binary_version": "1:1.4+dfsg1-3ubuntu1.18.04.1~esm1"
        }
    ],
    "priority_reason": "attack on the localhost"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8736.json"