{"id":"CVE-2020-25573","aliases":["DEBIAN-CVE-2020-25573","EUVD-2021-1854","GHSA-r43h-gmrm-h5c9","RUSTSEC-2020-0026","UBUNTU-CVE-2020-25573"],"status":"published","title":"Access of Uninitialized Pointer in linked-hash-map","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01827,"percentile":0.78985,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-824"],"published":"2020-06-23T12:00:00Z","modified":"2026-10-26T12:02:30Z","fixes":[{"ecosystem":"crates.io","package":"linked-hash-map","fixed_in":["0.5.3"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"rust-linked-hash-map","fixed_in":["0.5.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"rust-linked-hash-map","fixed_in":["0.5.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"rust-linked-hash-map","fixed_in":["0.5.4-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.3"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.4-1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"linked-hash-map","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.5.3"}]}]},{"source":"osv","ecosystem":"crates.io","package":"linked-hash-map","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.5.3"}]}]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.1-1","0.5.2-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.4-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"rust-linked-hash-map","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-1","0.5.6-2"]}],"products":[{"vendor":"linked-hash-map_project","product":"linked-hash-map"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0026.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/contain-rs/linked-hash-map/pull/100","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25573","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-r43h-gmrm-h5c9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-25573","tags":["advisory"]},{"url":"https://github.com/contain-rs/linked-hash-map","tags":["package"]},{"url":"https://crates.io/crates/linked-hash-map","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2020-25573","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-25573","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-25573","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2020-09-14T18:16:30Z","modified":"2024-08-04T15:33:05.767Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2021-1854","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2020-09-14T18:16:30Z","modified":"2024-08-04T15:33:05Z","updated_at":"2026-11-03T03:07:17.317062Z"}],"ghsa":[{"id":"GHSA-r43h-gmrm-h5c9","title":"Access of Uninitialized Pointer in linked-hash-map","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2021-08-25T20:45:09Z","modified":"2023-01-27T05:00:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-824"],"updated_at":"2026-11-02T14:36:14.825433Z"}],"nvd":[{"id":"CVE-2020-25573","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2020-09-14T19:15:11.27Z","modified":"2026-06-17T03:06:54.727Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-824"],"updated_at":"2026-11-02T14:06:14.981587Z"}],"osv":[{"id":"CVE-2020-25573","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2020-09-14T19:15:11.27Z","modified":"2026-03-14T10:22:39.574615Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:15.879068Z"},{"id":"DEBIAN-CVE-2020-25573","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2020-09-14T19:15:11.27Z","modified":"2026-10-26T12:02:30.873923442Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:33.729655Z"},{"id":"GHSA-r43h-gmrm-h5c9","title":"Access of Uninitialized Pointer in linked-hash-map","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2021-08-25T20:45:09Z","modified":"2023-11-08T04:03:10.099946Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-824"],"updated_at":"2026-11-02T15:46:55.122811Z"},{"id":"RUSTSEC-2020-0026","title":"linked-hash-map creates uninitialized NonNull pointer","description":"Affected versions of this crate called `mem::uninitialized()` to create a `NonNull\u003cT\u003e`,\nwhich is undefined behavior.\n \nThe flaw was corrected by avoiding the use of `mem::uninitialized()`.","status":"published","published":"2020-06-23T12:00:00Z","modified":"2023-11-08T04:03:10.099946Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:39.492624Z"},{"id":"UBUNTU-CVE-2020-25573","description":"An issue was discovered in the linked-hash-map crate before 0.5.3 for Rust. It creates an uninitialized NonNull pointer, which violates a non-null constraint.","status":"published","published":"2020-09-14T19:15:00Z","modified":"2026-10-17T12:55:51.830285092Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:23.905183Z"}]}}