Security advisory

{
  "id": "8f97df29bed1fdd671a5347acaac6a690d053b3285e78ff72eb5b5a42c46c476",
  "url": "https://osv.dev/vulnerability/CVE-2022-47942",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-47942",
    "summary": "An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.",
    "evidence": "osv:CVE-2022-47942",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-47942",
      "aliases": [
        "CVE-2022-47942"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8bb7eca972ad531c9b149c0a51ab43a417385813"
                },
                {
                  "fixed": "8f0541186e9ad1b62accc9519cc2b7a7240272a7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "5.15"
                      },
                      {
                        "last_affected": "5.19"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8f0541186e9ad1b62accc9519cc2b7a7240272a7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.19-rc1",
            "v5.19-rc5",
            "v5.19-rc6",
            "v5.18",
            "v5.19-rc2",
            "v5.19-rc7",
            "v5.19-rc3",
            "v5.19-rc4",
            "v5.18-rc1",
            "v5.18-rc7",
            "v5.18-rc2",
            "v5.18-rc5",
            "v5.17",
            "v5.18-rc4",
            "v5.18-rc3",
            "v5.18-rc6",
            "v5.17-rc6",
            "v5.17-rc4",
            "v5.17-rc8",
            "v5.17-rc7",
            "v5.17-rc1",
            "v5.17-rc3",
            "v5.17-rc2",
            "v5.17-rc5",
            "v5.16",
            "v5.16-rc1",
            "v5.16-rc8",
            "v5.16-rc5",
            "v5.16-rc6",
            "v5.16-rc7",
            "v5.16-rc3",
            "v5.16-rc2",
            "v5.16-rc4",
            "v5.15"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-47942.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.990183767Z",
      "provider": "osv",
      "references": [
        "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2",
        "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/47xxx/CVE-2022-47942.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-47942",
        "https://www.zerodayinitiative.com/advisories/ZDI-22-1688/",
        "https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "5.19.2"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/47xxx/CVE-2022-47942.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-47942",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505147,
  "published_at": "2022-12-23T00:00:00+00:00"
}