samba — security advisory

{
  "id": "eb648f425a24b0332d240d63d41d455424e46ce50d3f0292f3344b99fbc36bdb",
  "url": "https://osv.dev/vulnerability/ALPINE-CVE-2021-44141",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALPINE-CVE-2021-44141",
    "summary": "All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.",
    "evidence": "osv:ALPINE-CVE-2021-44141",
    "products": [
      {
        "name": {
          "value": "samba",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.15.5-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "samba",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.15.5-r0",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "ALPINE-CVE-2021-44141",
      "aliases": [
        "ALPINE-CVE-2021-44141"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.15.5-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "samba",
            "purl": "pkg:apk/alpine/samba?arch=source",
            "ecosystem": "Alpine:v3.15"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-44141.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.15.5-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "samba",
            "purl": "pkg:apk/alpine/samba?arch=source",
            "ecosystem": "Alpine:v3.16"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-44141.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-23T17:17:56.224377165Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-44141"
      ],
      "references": [
        "https://security.alpinelinux.org/vuln/CVE-2021-44141"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-44141",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 415600,
  "published_at": "2022-02-21T18:15:08.493+00:00"
}