CriticalFix available
tcpflow — security advisory
An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an integer overflow in the function handle_prism during caplen processing. If the caplen is less than 144, one can cause an integer overflow in the function handle_80211, which will result in an out-of-bounds read and may allow access to sensitive memory (or a denial of service).
- Products
- tcpflow
- Affected versions
- Not specified
- Fixed versions
- 1.5.0+repack1-1
- CVEs
- CVE-2018-14938
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:53 UTC · Revision 1
Source evidence
An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an integer overflow in the function handle_prism during caplen processing. If the caplen is less than 144, one can cause an integer overflow in the function handle_80211, which will result in an out-of-bounds read and may allow access to sensitive memory (or a denial of service).
osv:DEBIAN-CVE-2018-14938
tcpflow
Fixed versions: 1.5.0+repack1-1
tcpflow
Fixed versions: 1.5.0+repack1-1
tcpflow
Fixed versions: 1.5.0+repack1-1
Complete source record
{
"id": "c5566f32ad985b3f7a42668cac92ad2833528b3545d1f565619853b7f5c28f60",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-14938",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-14938",
"summary": "An issue was discovered in wifipcap/wifipcap.cpp in TCPFLOW through 1.5.0-alpha. There is an integer overflow in the function handle_prism during caplen processing. If the caplen is less than 144, one can cause an integer overflow in the function handle_80211, which will result in an out-of-bounds read and may allow access to sensitive memory (or a denial of service).",
"evidence": "osv:DEBIAN-CVE-2018-14938",
"products": [
{
"name": {
"value": "tcpflow",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.5.0+repack1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tcpflow",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.5.0+repack1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tcpflow",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.5.0+repack1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2018-14938",
"aliases": [
"DEBIAN-CVE-2018-14938"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0+repack1-1"
}
]
}
],
"package": {
"name": "tcpflow",
"purl": "pkg:deb/debian/tcpflow?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14938.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0+repack1-1"
}
]
}
],
"package": {
"name": "tcpflow",
"purl": "pkg:deb/debian/tcpflow?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14938.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0+repack1-1"
}
]
}
],
"package": {
"name": "tcpflow",
"purl": "pkg:deb/debian/tcpflow?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14938.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:55.106082273Z",
"provider": "osv",
"upstream": [
"CVE-2018-14938"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-14938"
]
},
"related_cves": [
{
"value": "CVE-2018-14938",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 422612,
"published_at": "2018-08-05T03:29:00.217+00:00"
}