linux-microvm-6.18-image-uncompressed — security advisory

{
  "id": "252f4c07af3052b53496af92735dd68f12d15bf3be0e6a1ed98091ec43b746ee",
  "url": "https://osv.dev/vulnerability/CGA-346r-3wq2-f46q",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-346r-3wq2-f46q",
    "summary": "CGA-346r-3wq2-f46q",
    "evidence": "osv:CGA-346r-3wq2-f46q",
    "products": [
      {
        "name": {
          "value": "linux-microvm-6.18-image-uncompressed",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-346r-3wq2-f46q",
      "aliases": [
        "CGA-346r-3wq2-f46q"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "linux-microvm-6.18-image-uncompressed",
            "purl": "pkg:apk/chainguard/linux-microvm-6.18-image-uncompressed?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-346r-3wq2-f46q.json"
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "linux-microvm-6.18-image-uncompressed",
                "component_purl": "pkg:apk/linux-microvm-6.18-image-uncompressed@6.18.56-r0",
                "component_type": "apk",
                "component_version": "6.18.56-r0",
                "component_location": "/.PKGINFO",
                "latest_event_status": "detection",
                "latest_event_timestamp": "2026-10-15T02:31:06Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-15T17:26:23.042712026Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-3864",
        "GHSA-9682-f2fr-3h46"
      ],
      "references": [
        "https://lore.kernel.org/all/20211221021744.864115-1-longman%40redhat.com/",
        "https://lore.kernel.org/all/20211226150310.GA992%401wt.eu/",
        "https://lore.kernel.org/lkml/20211228170910.623156-1-wander%40redhat.com/",
        "https://access.redhat.com/security/cve/CVE-2021-3864",
        "https://security-tracker.debian.org/tracker/CVE-2021-3864",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2015046",
        "https://www.openwall.com/lists/oss-security/2021/10/20/2"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-3864",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 334373,
  "published_at": "2026-10-15T02:31:06+00:00"
}