CriticalFix available
lwip, ppp — security advisory
eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.
- Products
- lwip, ppp
- Affected versions
- Not specified
- Fixed versions
- 2.1.2+dfsg1-5, 2.4.8-1+1
- CVEs
- CVE-2020-8597
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:37 UTC · Revision 1
Source evidence
eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.
osv:DEBIAN-CVE-2020-8597
lwip
Fixed versions: 2.1.2+dfsg1-5
lwip
Fixed versions: 2.1.2+dfsg1-5
lwip
Fixed versions: 2.1.2+dfsg1-5
ppp
Fixed versions: 2.4.8-1+1
ppp
Fixed versions: 2.4.8-1+1
ppp
Fixed versions: 2.4.8-1+1
Complete source record
{
"id": "ecd10b8ce9550c5cd5fac6985c9cf166f64132b1968cbdcbf731ad6a4180762d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-8597",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-8597",
"summary": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.",
"evidence": "osv:DEBIAN-CVE-2020-8597",
"products": [
{
"name": {
"value": "lwip",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.2+dfsg1-5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lwip",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.2+dfsg1-5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lwip",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.2+dfsg1-5",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ppp",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.8-1+1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ppp",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.8-1+1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ppp",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.8-1+1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2020-8597",
"aliases": [
"DEBIAN-CVE-2020-8597"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.2+dfsg1-5"
}
]
}
],
"package": {
"name": "lwip",
"purl": "pkg:deb/debian/lwip?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.2+dfsg1-5"
}
]
}
],
"package": {
"name": "lwip",
"purl": "pkg:deb/debian/lwip?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.2+dfsg1-5"
}
]
}
],
"package": {
"name": "lwip",
"purl": "pkg:deb/debian/lwip?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.8-1+1"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.8-1+1"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.8-1+1"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8597.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:34.264062186Z",
"provider": "osv",
"upstream": [
"CVE-2020-8597"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-8597"
]
},
"related_cves": [
{
"value": "CVE-2020-8597",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 452622,
"published_at": "2020-02-03T23:15:11.387+00:00"
}