Security advisory

{
  "id": "2018f5895977de7cf0d3c1b16fed774b74bb2b28096616098903cfe89ad9924f",
  "url": "https://osv.dev/vulnerability/CVE-2020-27348",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-27348",
    "summary": "In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1.",
    "evidence": "osv:CVE-2020-27348",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-27348",
      "aliases": [
        "CVE-2020-27348",
        "GHSA-qxm5-vx5j-pp6w",
        "PYSEC-2020-109"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/canonical/snapcraft",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a0ceca9d531a34c979251030ed67b5fa2abfdd9a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:canonical:snapcraft:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.4.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.4.3",
            "4.4.2",
            "4.4.1",
            "4.4",
            "4.3",
            "4.2",
            "4.1.5",
            "4.1.4",
            "4.1.3",
            "4.1.2",
            "4.1.1",
            "4.1",
            "4.0.7",
            "4.0.6",
            "4.0.5",
            "4.0.4",
            "4.0.3",
            "untagged-062755d465f752108ab6",
            "4.0.2",
            "4.0.1",
            "4.0",
            "4.0rc1",
            "3.11",
            "3.10.2",
            "3.10.1",
            "3.10",
            "3.9.2",
            "3.9.1",
            "3.9",
            "3.8",
            "3.7.2",
            "3.7.1",
            "3.7",
            "3.6",
            "3.5.1",
            "3.5",
            "3.4.1",
            "3.4",
            "3.3",
            "3.2",
            "3.1.1",
            "3.1",
            "3.0.1",
            "3.0",
            "2.43.1",
            "2.43",
            "2.42.1",
            "2.42",
            "2.41",
            "2.40.1",
            "2.40",
            "2.39.2",
            "2.39.1",
            "2.39",
            "2.38",
            "2.37",
            "2.36.1",
            "2.36",
            "2.35",
            "2.34",
            "2.33",
            "2.32",
            "2.31",
            "2.30",
            "2.29.1",
            "2.29",
            "2.28",
            "2.27.1",
            "2.27",
            "2.26",
            "2.25",
            "2.24",
            "2.23",
            "2.22.1",
            "2.22",
            "2.21",
            "2.20",
            "2.19",
            "2.18.1",
            "2.18",
            "refs/tags",
            "2.17",
            "2.16",
            "2.15.1",
            "2.15",
            "2.14",
            "2.13.1",
            "2.13",
            "2.12.1",
            "2.12",
            "2.11",
            "2.10.1",
            "2.10",
            "2.9",
            "2.8.8",
            "2.8.7",
            "2.8.6",
            "2.8.5",
            "2.8.4",
            "2.8.3",
            "2.8.2",
            "2.8.1",
            "2.8",
            "2.7",
            "2.6.1",
            "2.6",
            "2.5",
            "2.4",
            "2.3.2",
            "2.3",
            "2.2.2",
            "2.2.1",
            "2.2",
            "2.1",
            "2.1.1",
            "2.0.1",
            "2.0",
            "0.6",
            "0.5",
            "0.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27348.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:06.647129267Z",
      "provider": "osv",
      "references": [
        "https://github.com/snapcore/snapcraft/pull/3345",
        "https://bugs.launchpad.net/bugs/1901572",
        "https://usn.ubuntu.com/usn/usn-4661-1"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:*:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-27348",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384193,
  "published_at": "2020-12-04T03:15:12.413+00:00"
}