frr — security advisory
An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.
- Products
- frr
- Affected versions
- Not specified
- Fixed versions
- 8.4.1-1
- CVEs
- CVE-2022-43681
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:32 UTC · Revision 1
Source evidence
An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.
osv:DEBIAN-CVE-2022-43681
frr
Fixed versions: 8.4.1-1
frr
Fixed versions: 8.4.1-1
frr
Fixed versions: 8.4.1-1
Complete source record
{
"id": "e4b0ddebd19eb5a869600a1640597193e4b81f56f9021cceb6fc25c8157d7e16",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-43681",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-43681",
"summary": "An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.",
"evidence": "osv:DEBIAN-CVE-2022-43681",
"products": [
{
"name": {
"value": "frr",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.4.1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "frr",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.4.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "frr",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.4.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2022-43681",
"aliases": [
"DEBIAN-CVE-2022-43681"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.4.1-1"
}
]
}
],
"package": {
"name": "frr",
"purl": "pkg:deb/debian/frr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-43681.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.4.1-1"
}
]
}
],
"package": {
"name": "frr",
"purl": "pkg:deb/debian/frr?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-43681.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.4.1-1"
}
]
}
],
"package": {
"name": "frr",
"purl": "pkg:deb/debian/frr?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-43681.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:03:05.832781517Z",
"provider": "osv",
"upstream": [
"CVE-2022-43681"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-43681"
]
},
"related_cves": [
{
"value": "CVE-2022-43681",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 325133,
"published_at": "2023-05-03T12:16:30.07+00:00"
}