Critical
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
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-8597
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:37 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:CVE-2020-8597
Complete source record
{
"id": "ac7c9055f05c51426844072fb3d9806c38ef4591cf365d6a1d95a405cda57c03",
"url": "https://osv.dev/vulnerability/CVE-2020-8597",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "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:CVE-2020-8597",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2020-8597",
"aliases": [
"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": [
{
"repo": "https://github.com/ppp-project/ppp",
"type": "GIT",
"events": [
{
"introduced": "47e865d8d20259857f96a573c8a3f18b27925d7e"
},
{
"last_affected": "78cd384ce0f48bb5edb84e4fe9a574eab4a4ad14"
},
{
"fixed": "8d7970b8f3db727fe798b65f3377fe6787575426"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:point-to-point_protocol_project:point-to-point_protocol:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.2"
},
{
"last_affected": "2.4.8"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "8d7970b8f3db727fe798b65f3377fe6787575426"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v2.4.8",
"ppp-2.4.8",
"v2.4.7",
"ppp-2.4.7",
"v2.4.6",
"ppp-2.4.6",
"v2.4.5",
"ppp-2.4.5",
"v2.4.4",
"ppp-2.4.4",
"v2.4.3",
"ppp-2.4.3",
"v2.4.2",
"ppp-2.4.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8597.json",
"vanir_signatures": [
{
"id": "CVE-2020-8597-c6718d2e",
"digest": {
"threshold": 0.9,
"line_hashes": [
"8699045395222809821525703277737619786",
"292496779373962596035831255329665227367",
"48074617099796428185979187632482703117",
"71461733246980172279550421003972967472",
"248727923961049345348254177514247989885",
"292496779373962596035831255329665227367",
"48074617099796428185979187632482703117",
"71461733246980172279550421003972967472"
]
},
"source": "https://github.com/ppp-project/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426",
"target": {
"file": "pppd/eap.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T14:01:46Z"
}
}
],
"modified": "2026-10-20T14:01:46.804450746Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UNJNHWOO4XF73M2W56ILZUY4JQG3JXIR/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YOFDAIOWSWPG732ASYUZNINMXDHY4APE/",
"https://access.redhat.com/errata/RHSA-2020:0630",
"https://access.redhat.com/errata/RHSA-2020:0631",
"https://access.redhat.com/errata/RHSA-2020:0633",
"https://access.redhat.com/errata/RHSA-2020:0634",
"https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf",
"https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136",
"https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html",
"https://security.gentoo.org/glsa/202003-19",
"https://security.netapp.com/advisory/ntap-20200313-0004/",
"https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04",
"https://usn.ubuntu.com/4288-1/",
"https://usn.ubuntu.com/4288-2/",
"https://www.debian.org/security/2020/dsa-4632",
"https://www.kb.cert.org/vuls/id/782301",
"https://www.synology.com/security/advisory/Synology_SA_20_02",
"https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:wago:pfc_firmware:*:*:*:*:*:*:*:*"
],
"vendor_product": "wago:pfc_firmware",
"extracted_events": [
{
"range": [
{
"fixed": "03.04.10\\(16\\)"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "12.04"
},
{
"last_affected": "12.04"
},
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "19.04"
},
{
"last_affected": "19.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-8597",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388515,
"published_at": "2020-02-03T23:15:11.387+00:00"
}