ubuntu-cve-2022-36440
Vulnerability from osv_ubuntu
Published
2023-04-03 16:15
Modified
2025-07-16 05:01
Summary
Details

A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "frr",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-dbgsym",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-doc",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-pythontools",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-rpki-rtrlib-dbgsym",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-snmp",
            "binary_version": "7.2.1-1ubuntu0.2"
          },
          {
            "binary_name": "frr-snmp-dbgsym",
            "binary_version": "7.2.1-1ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "frr",
        "purl": "pkg:deb/ubuntu/frr@7.2.1-1ubuntu0.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.1-1ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.2-2build2",
        "7.2-1ubuntu1",
        "7.2-1ubuntu2",
        "7.2.1-1",
        "7.2.1-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "frr",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-dbgsym",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-doc",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-pythontools",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-rpki-rtrlib-dbgsym",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-snmp",
            "binary_version": "8.1-1ubuntu1.3"
          },
          {
            "binary_name": "frr-snmp-dbgsym",
            "binary_version": "8.1-1ubuntu1.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "frr",
        "purl": "pkg:deb/ubuntu/frr@8.1-1ubuntu1.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1-1ubuntu1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.5.1-1.1",
        "8.1-1",
        "8.1-1ubuntu1",
        "8.1-1ubuntu1.1",
        "8.1-1ubuntu1.2"
      ]
    }
  ],
  "aliases": [],
  "details": "A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.",
  "id": "UBUNTU-CVE-2022-36440",
  "modified": "2025-07-16T05:01:33Z",
  "published": "2023-04-03T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-36440"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/spwpun/pocs/blob/main/frr-bgpd.md"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-36440"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-36440"
  ],
  "withdrawn": "2025-07-18T16:49:31Z"
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.