{"id":"CVE-2020-36462","aliases":["EUVD-2021-1898","GHSA-r88h-6987-g79f","GHSA-vp6r-mrq9-8f4h","RUSTSEC-2020-0142"],"status":"published","title":"Duplicate Advisory: Data races on syncpool","description":"An issue was discovered in the syncpool crate before 0.1.6 for Rust. There is an unconditional implementation of Send for Bucket2.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0124,"percentile":0.69582,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-362","CWE-77"],"published":"2020-11-29T12:00:00Z","modified":"2026-06-17T03:15:32Z","fixes":[{"ecosystem":"crates.io","package":"syncpool","fixed_in":["0.1.6"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"syncpool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.6"}]}]},{"source":"osv","ecosystem":"crates.io","package":"syncpool","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.1.6"}]}]},{"source":"osv","ecosystem":"crates.io","package":"syncpool","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.1.6"}]}]}],"products":[{"vendor":"syncpool_project","product":"syncpool"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0142.html","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","web","advisory"]},{"url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/syncpool/RUSTSEC-2020-0142.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://github.com/Chopinsky/byte_buffer/issues/2","tags":["web","report"]},{"url":"https://github.com/RustSec/advisory-db/blob/main/crates/syncpool/RUSTSEC-2020-0142.md","tags":["web"]},{"url":"https://github.com/Chopinsky/byte_buffer/commit/15b282877d1e576de2b337d8162bbf43ed1a0f2d","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r88h-6987-g79f"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36462","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vp6r-mrq9-8f4h"},{"url":"https://github.com/Chopinsky/byte_buffer/tree/master/syncpool","tags":["package"]},{"url":"https://crates.io/crates/syncpool","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-36462","description":"An issue was discovered in the syncpool crate before 0.1.6 for Rust. There is an unconditional implementation of Send for Bucket2.","status":"published","published":"2021-08-08T05:13:09Z","modified":"2024-08-04T17:30:08.172Z","updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2021-1898","description":"An issue was discovered in the syncpool crate before 0.1.6 for Rust. There is an unconditional implementation of Send for Bucket2.","status":"published","published":"2021-08-08T05:13:09Z","modified":"2024-08-04T17:30:08Z","updated_at":"2026-11-03T03:07:02.510914Z"}],"ghsa":[{"id":"GHSA-r88h-6987-g79f","title":"Duplicate Advisory: Data races on syncpool","description":"## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-vp6r-mrq9-8f4h. This link is maintained to preserve external references.\n\n## Original Description\nAffected versions of this crate unconditionally implements `Send` for `Bucket2`. This allows sending non-Send types to other threads.\n\nThis can lead to data races when non Send types like `Cell\u003cT\u003e` or `Rc\u003cT\u003e` are contained inside `Bucket2` and sent across thread boundaries. The data races can potentially lead to memory corruption (as demonstrated in the PoC from the original report issue).\n\nThe flaw was corrected in commit `15b2828` by adding a `T: Send` bound to the `Send` impl of `Bucket2\u003cT\u003e`.","status":"withdrawn","published":"2021-08-25T21:00:28Z","modified":"2026-01-23T22:52:24Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:39:19.525691Z"},{"id":"GHSA-vp6r-mrq9-8f4h","title":"Data race in syncpool","description":"Affected versions of this crate unconditionally implements Send for Bucket2. This allows sending non-Send types to other threads. This can lead to data races when non Send types like Cell\u003cT\u003e or Rc\u003cT\u003e are contained inside Bucket2 and sent across thread boundaries. The data races can potentially lead to memory corruption (as demonstrated in the PoC from the original report issue). The flaw was corrected in commit `15b2828` by adding a T: Send bound to the Send impl of Bucket2\u003cT\u003e.","status":"published","published":"2021-08-25T20:58:11Z","modified":"2023-06-13T21:50:04Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77","CWE-362"],"updated_at":"2026-11-02T14:36:54.225318Z"}],"nvd":[{"id":"CVE-2020-36462","description":"An issue was discovered in the syncpool crate before 0.1.6 for Rust. There is an unconditional implementation of Send for Bucket2.","status":"published","published":"2021-08-08T06:15:08.007Z","modified":"2026-06-17T03:15:32.62Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"GHSA-r88h-6987-g79f","title":"Duplicate Advisory: Data races on syncpool","description":"## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-vp6r-mrq9-8f4h. This link is maintained to preserve external references.\n\n## Original Description\nAffected versions of this crate unconditionally implements `Send` for `Bucket2`. This allows sending non-Send types to other threads.\n\nThis can lead to data races when non Send types like `Cell\u003cT\u003e` or `Rc\u003cT\u003e` are contained inside `Bucket2` and sent across thread boundaries. The data races can potentially lead to memory corruption (as demonstrated in the PoC from the original report issue).\n\nThe flaw was corrected in commit `15b2828` by adding a `T: Send` bound to the `Send` impl of `Bucket2\u003cT\u003e`.","status":"withdrawn","published":"2021-08-25T21:00:28Z","modified":"2026-02-03T03:07:50.215416Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T15:46:55.480549Z"},{"id":"GHSA-vp6r-mrq9-8f4h","title":"Data race in syncpool","description":"Affected versions of this crate unconditionally implements Send for Bucket2. This allows sending non-Send types to other threads. This can lead to data races when non Send types like Cell\u003cT\u003e or Rc\u003cT\u003e are contained inside Bucket2 and sent across thread boundaries. The data races can potentially lead to memory corruption (as demonstrated in the PoC from the original report issue). The flaw was corrected in commit `15b2828` by adding a T: Send bound to the Send impl of Bucket2\u003cT\u003e.","status":"published","published":"2021-08-25T20:58:11Z","modified":"2023-11-08T04:03:46.319786Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362","CWE-77"],"updated_at":"2026-11-02T15:46:57.348035Z"},{"id":"RUSTSEC-2020-0142","title":"Send bound needed on T (for Send impl of `Bucket2`)","description":"Affected versions of this crate unconditionally implements `Send` for `Bucket2`. This allows sending non-Send types to other threads.\n\nThis can lead to data races when non Send types like `Cell\u003cT\u003e` or `Rc\u003cT\u003e` are contained inside `Bucket2` and sent across thread boundaries. The data races can potentially lead to memory corruption (as demonstrated in the PoC from the original report issue).\n\nThe flaw was corrected in commit 15b2828 by adding a `T: Send` bound to the `Send` impl of `Bucket2\u003cT\u003e`.","status":"published","published":"2020-11-29T12:00:00Z","modified":"2023-11-08T04:03:46.319786Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:39.492624Z"}]}}