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frr — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2022-43681

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

DEBIAN-CVE-2022-43681

core-osv · Original source

Published 3 May 2023, 12:16 UTC

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"
}