{"id":"CVE-2020-12118","aliases":["EUVD-2021-1252","GHSA-399h-cmvp-qgx5","GO-2022-0769"],"status":"published","title":"Incorrect Default Permissions in Binance tss-lib","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01279,"percentile":0.7041,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-276"],"published":"2020-04-23T21:28:33Z","modified":"2026-10-20T10:52:47Z","fixes":[{"ecosystem":"Go","package":"github.com/binance-chain/tss-lib","fixed_in":["1.2.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/binance-chain/tss-lib","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/binance-chain/tss-lib","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.2.0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/binance-chain/tss-lib","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.2.0"}]}]}],"products":[{"vendor":"binance","product":"tss-lib"}],"references":[{"url":"https://github.com/binance-chain/tss-lib/pull/89","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/binance-chain/tss-lib/releases/tag/v1.2.0","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12118","tags":["advisory"]},{"url":"https://github.com/binance-chain/tss-lib/pull/89/commits/7b7c17e90504d5dad94b938e84fec690bb1ec311","tags":["web","fix"]},{"url":"https://github.com/advisories/GHSA-399h-cmvp-qgx5","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-12118","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.","status":"published","published":"2020-04-23T21:28:33Z","modified":"2024-08-04T11:48:58.523Z","updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2021-1252","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.","status":"published","published":"2020-04-23T21:28:33Z","modified":"2024-08-04T11:48:58Z","updated_at":"2026-11-03T03:07:40.81889Z"}],"ghsa":[{"id":"GHSA-399h-cmvp-qgx5","title":"Incorrect Default Permissions in Binance tss-lib","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.\n### Specific Go Packages Affected\ngithub.com/binance-chain/tss-lib/ecdsa/keygen","status":"published","published":"2021-06-29T21:32:11Z","modified":"2023-10-02T14:30:18Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:R","level":"high"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:37:07.641671Z"}],"nvd":[{"id":"CVE-2020-12118","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.","status":"published","published":"2020-04-23T22:15:12.913Z","modified":"2026-06-17T02:51:26.247Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:05:59.718774Z"}],"osv":[{"id":"CVE-2020-12118","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.","status":"published","published":"2020-04-23T22:15:12.913Z","modified":"2026-10-20T10:52:47.286428734Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:14.034736Z"},{"id":"GHSA-399h-cmvp-qgx5","title":"Incorrect Default Permissions in Binance tss-lib","description":"The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.\n### Specific Go Packages Affected\ngithub.com/binance-chain/tss-lib/ecdsa/keygen","status":"published","published":"2021-06-29T21:32:11Z","modified":"2024-08-21T15:42:04.764269Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:R","level":"high"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T15:46:35.406455Z"},{"id":"GO-2022-0769","title":"Incorrect Default Permissions in Binance tss-lib in github.com/binance-chain/tss-lib","description":"Incorrect Default Permissions in Binance tss-lib in github.com/binance-chain/tss-lib","status":"published","published":"2024-08-21T15:21:45Z","modified":"2026-03-03T04:52:15.93987Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}