Security advisory

{
  "id": "8afb3afabae13a77f97fe0f3d2adb60aff5c6383100a77f9d7a20f56a48e1c35",
  "url": "https://osv.dev/vulnerability/CVE-2021-31162",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-31162",
    "summary": "In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.",
    "evidence": "osv:CVE-2021-31162",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-31162",
      "aliases": [
        "CVE-2021-31162"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rust-lang/rust",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7eac88abb2e57e752f3302f02be5f3ce3d7adfb4"
                },
                {
                  "fixed": "88f19c6dab716c6281af7602e30f413e809c5974"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.48.0"
                      },
                      {
                        "fixed": "1.52.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31162.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:24.074415415Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZG65GUW6Z2CYOQHF7T3TB5CZKIX6ZJE/",
        "https://security.gentoo.org/glsa/202210-09",
        "https://github.com/rust-lang/rust/pull/83629",
        "https://github.com/rust-lang/rust/pull/84603",
        "https://github.com/rust-lang/rust/issues/83618"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "rust-lang:rust",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.48.0"
                  },
                  {
                    "fixed": "1.52.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  },
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  },
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-31162",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442109,
  "published_at": "2021-04-14T07:15:12.227+00:00"
}