{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:open5gs:open5gs:2.5.6:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "2.5.6"
              },
              {
                "last_affected": "2.5.6"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "3531166d38510e65b2c98a8cf2a409bff9c04dfe"
            },
            {
              "last_affected": "3531166d38510e65b2c98a8cf2a409bff9c04dfe"
            }
          ],
          "repo": "https://github.com/open5gs/open5gs",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.5.6"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "SNPS",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23846.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "last_affected": "2.4.12"
          },
          {
            "last_affected": "2.5.6"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Due to insufficient length validation in the Open5GS GTP library versions prior to versions 2.4.13 and 2.5.7, when parsing extension headers in GPRS tunneling protocol (GPTv1-U) messages, a protocol payload with any extension header length set to zero causes an infinite loop. The affected process becomes immediately unresponsive, resulting in denial of service and excessive resource consumption. CVSS3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
  "id": "CVE-2023-23846",
  "modified": "2026-07-08T05:38:56.896790527Z",
  "published": "2023-02-01T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23846.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23846"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.synopsys.com/blogs/software-security/cyrc-advisory-open5gs-gtp-library/"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}