Security advisory

{
  "id": "19bc6a57aca2def804a9ad84e0c521187a5f9519f37ac190492ea377a1a141ae",
  "url": "https://osv.dev/vulnerability/CVE-2019-12439",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-12439",
    "summary": "bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code.",
    "evidence": "osv:CVE-2019-12439",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-12439",
      "aliases": [
        "CVE-2019-12439"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/containers/bubblewrap",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "bc13e228d172cc2385aa445b512c6bf8ca2f3376"
                },
                {
                  "fixed": "efc89e3b939b4bde42c10f065f6b7b02958ed50e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:projectatomic:bubblewrap:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.3.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "efc89e3b939b4bde42c10f065f6b7b02958ed50e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bc13e228d172cc2385aa445b512c6bf8ca2f3376"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.3.3"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.1",
            "v0.3.0",
            "v0.2.1",
            "v0.2.0",
            "v0.1.8",
            "v0.1.7",
            "v0.1.5",
            "v0.1.4",
            "v0.1.3",
            "0.1.2",
            "v0.1.1",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12439.json",
            "vanir_signatures": [
              {
                "id": "CVE-2019-12439-0814091c",
                "digest": {
                  "length": 10855,
                  "function_hash": "163138480516088060973123991537078844772"
                },
                "source": "https://github.com/containers/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e",
                "target": {
                  "file": "bubblewrap.c",
                  "function": "main"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2019-12439-776902b2",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
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                },
                "source": "https://github.com/containers/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e",
                "target": {
                  "file": "bubblewrap.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:54:40Z"
          }
        }
      ],
      "modified": "2026-10-20T13:54:40.876948077Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2019:1833",
        "https://github.com/projectatomic/bubblewrap/issues/304",
        "https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3",
        "https://security.gentoo.org/glsa/202006-18",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1695963",
        "https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-12439",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388366,
  "published_at": "2019-05-29T15:29:00.377+00:00"
}