ubuntu-cve-2023-41909
Vulnerability from osv_ubuntu
Published
2023-09-05 07:15
Modified
2025-09-08 16:56
Summary
Details

An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in bgpd/bgp_flowspec.c processes malformed requests with no attributes, leading to a NULL pointer dereference.

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": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "frr",
            "binary_version": "7.2.1-1ubuntu0.2+esm1"
          },
          {
            "binary_name": "frr-pythontools",
            "binary_version": "7.2.1-1ubuntu0.2+esm1"
          },
          {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "7.2.1-1ubuntu0.2+esm1"
          },
          {
            "binary_name": "frr-snmp",
            "binary_version": "7.2.1-1ubuntu0.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "frr",
        "purl": "pkg:deb/ubuntu/frr@7.2.1-1ubuntu0.2+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.1-1ubuntu0.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.2-2build2",
        "7.2-1ubuntu1",
        "7.2-1ubuntu2",
        "7.2.1-1",
        "7.2.1-1ubuntu0.1",
        "7.2.1-1ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "frr",
            "binary_version": "8.1-1ubuntu1.6"
          },
          {
            "binary_name": "frr-pythontools",
            "binary_version": "8.1-1ubuntu1.6"
          },
          {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "8.1-1ubuntu1.6"
          },
          {
            "binary_name": "frr-snmp",
            "binary_version": "8.1-1ubuntu1.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "frr",
        "purl": "pkg:deb/ubuntu/frr@8.1-1ubuntu1.6?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1-1ubuntu1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.5.1-1.1",
        "8.1-1",
        "8.1-1ubuntu1",
        "8.1-1ubuntu1.1",
        "8.1-1ubuntu1.2",
        "8.1-1ubuntu1.3",
        "8.1-1ubuntu1.4",
        "8.1-1ubuntu1.5"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in bgpd/bgp_flowspec.c processes malformed requests with no attributes, leading to a NULL pointer dereference.",
  "id": "UBUNTU-CVE-2023-41909",
  "modified": "2025-09-08T16:56:30Z",
  "published": "2023-09-05T07:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-41909"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FRRouting/frr/commit/cfd04dcb3e689754a72507d086ba3b9709fc5ed8"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FRRouting/frr/commit/cc1a551cb007cc8ed8b1ea0605a7ab46c16de12b"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FRRouting/frr/commit/0a12b878082f77b67ad5d9b4782846ac738575a2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6436-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-41909"
    }
  ],
  "related": [
    "USN-6436-1"
  ],
  "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-2023-41909"
  ]
}



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