High
cflow — security advisory
A vulnerability was found in GNU cflow 1.7. It has been rated as problematic. This issue affects the function func_body/parse_variable_declaration of the file parser.c. The manipulation leads to denial of service. The exploit has been disclosed to the public and may be used. The identifier VDB-229373 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
- Products
- cflow
- Affected versions
- 1:1.4+dfsg1-3ubuntu1, 1:1.4+dfsg1-3ubuntu1.16.04.1~esm1, 1:1.4+dfsg1-3ubuntu1.18.04.1~esm1, 1:1.6-4, 1:1.6-6, 1:1.7-2, 1:1.7-4, 1:1.7-5, 1:1.8-1, 1:1.8-1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2023-2789
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:39 UTC · Revision 1
Source evidence
A vulnerability was found in GNU cflow 1.7. It has been rated as problematic. This issue affects the function func_body/parse_variable_declaration of the file parser.c. The manipulation leads to denial of service. The exploit has been disclosed to the public and may be used. The identifier VDB-229373 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
osv:UBUNTU-CVE-2023-2789
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
cflow
Fixed versions: Not specified
Complete source record
{
"id": "256a912f0ecdf655055e6829e212d57f337a4bbf4bafed9df3a326fe6efa34e3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-2789",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-2789",
"summary": "A vulnerability was found in GNU cflow 1.7. It has been rated as problematic. This issue affects the function func_body/parse_variable_declaration of the file parser.c. The manipulation leads to denial of service. The exploit has been disclosed to the public and may be used. The identifier VDB-229373 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
"evidence": "osv:UBUNTU-CVE-2023-2789",
"products": [
{
"name": {
"value": "cflow",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.4+dfsg1-3ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.4+dfsg1-3ubuntu1.16.04.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.4+dfsg1-3ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "1:1.4+dfsg1-3ubuntu1.18.04.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.6-4",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.6-4",
"evidence": "/affected/3/versions"
},
{
"value": "1:1.6-6",
"evidence": "/affected/3/versions"
},
{
"value": "1:1.7-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.7-4",
"evidence": "/affected/4/versions"
},
{
"value": "1:1.7-5",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.7-5",
"evidence": "/affected/5/versions"
},
{
"value": "1:1.8-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.8-1build1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "cflow",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:1.8-1",
"evidence": "/affected/7/versions"
},
{
"value": "1:1.8-1build1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2023-2789",
"aliases": [
"UBUNTU-CVE-2023-2789"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"1:1.4+dfsg1-3ubuntu1",
"1:1.4+dfsg1-3ubuntu1.16.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.4+dfsg1-3ubuntu1.16.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"1:1.4+dfsg1-3ubuntu1",
"1:1.4+dfsg1-3ubuntu1.18.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.4+dfsg1-3ubuntu1.18.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1:1.6-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.6-4"
},
{
"binary_name": "cflow-l10n",
"binary_version": "1:1.6-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1:1.6-4",
"1:1.6-6",
"1:1.7-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.7-2"
},
{
"binary_name": "cflow-l10n",
"binary_version": "1:1.7-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1:1.7-4",
"1:1.7-5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.7-5"
},
{
"binary_name": "cflow-l10n",
"binary_version": "1:1.7-5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"1:1.7-5",
"1:1.8-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.8-1"
},
{
"binary_name": "cflow-l10n",
"binary_version": "1:1.8-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1:1.8-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.8-1build1"
},
{
"binary_name": "cflow-l10n",
"binary_version": "1:1.8-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cflow",
"purl": "pkg:deb/ubuntu/cflow?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1:1.8-1",
"1:1.8-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2789.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cflow",
"binary_version": "1:1.8-1build1"
},
{
"binary_name": "cflow-l10n",
"binary_version": "1:1.8-1build1"
}
]
}
}
],
"modified": "2026-10-17T12:57:16.957522312Z",
"provider": "osv",
"upstream": [
"CVE-2023-2789"
],
"references": [
"https://ubuntu.com/security/CVE-2023-2789",
"https://github.com/DaisyPo/fuzzing-vulncollect/files/11343936/poc-file.zip",
"https://github.com/DaisyPo/fuzzing-vulncollect/blob/main/cflow/stack-overflow/parser.c/README.md",
"https://www.cve.org/CVERecord?id=CVE-2023-2789"
]
},
"related_cves": [
{
"value": "CVE-2023-2789",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 357088,
"published_at": "2023-05-18T13:15:00+00:00"
}