{"id":"GHSA-3jc5-5hc5-33gj","summary":"Data races in conquer-once","details":"Affected versions of conquer-once implements Sync for its OnceCell type without restricting it to Sendable types.\n\nThis allows non-Send but Sync types such as MutexGuard to be sent across threads leading to undefined behavior and memory corruption in concurrent programs.\n\nThe issue was fixed by adding a Send constraint to OnceCell.","aliases":["CVE-2020-36208","RUSTSEC-2020-0101"],"modified":"2023-11-08T04:03:41.598624Z","published":"2021-08-25T20:50:49Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2021-08-19T18:51:18Z","nvd_published_at":null,"cwe_ids":["CWE-662","CWE-787"],"severity":"HIGH"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36208"},{"type":"WEB","url":"https://github.com/oliver-giersch/conquer-once/issues/3"},{"type":"PACKAGE","url":"https://github.com/oliver-giersch/conquer-once"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2020-0101.html"}],"affected":[{"package":{"name":"conquer-once","ecosystem":"crates.io","purl":"pkg:cargo/conquer-once"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.3.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-3jc5-5hc5-33gj/GHSA-3jc5-5hc5-33gj.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}