{"id":"GHSA-ffhg-7mh4-33c4","summary":"Improper Verification of Cryptographic Signature in golang.org/x/crypto","details":"golang.org/x/crypto before v0.0.0-20200220183623-bac4c82f6975 for Go allows a panic during signature verification in the golang.org/x/crypto/ssh package. A client can attack an SSH server that accepts public keys. Also, a server can attack any SSH client.","aliases":["CVE-2020-9283","GO-2020-0012"],"modified":"2026-07-17T21:15:18.110856691Z","published":"2021-05-18T15:29:31Z","database_specific":{"github_reviewed_at":"2021-05-17T22:02:30Z","nvd_published_at":"2020-02-20T20:15:00Z","cwe_ids":["CWE-347"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9283"},{"type":"WEB","url":"https://github.com/golang/crypto/commit/bac4c82f69751a6dd76e702d54b3ceb88adab236"},{"type":"PACKAGE","url":"https://github.com/golang/crypto"},{"type":"WEB","url":"https://go.dev/cl/220357"},{"type":"WEB","url":"https://go.googlesource.com/crypto/+/bac4c82f69751a6dd76e702d54b3ceb88adab236"},{"type":"WEB","url":"https://groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY"},{"type":"WEB","url":"https://groups.google.com/g/golang-announce/c/3L45YRc91SY"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/11/msg00027.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/11/msg00031.html"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2020-0012"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/48121"},{"type":"WEB","url":"http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html"}],"affected":[{"package":{"name":"golang.org/x/crypto","ecosystem":"Go","purl":"pkg:golang/golang.org/x/crypto"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20200220183623-bac4c82f6975"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-ffhg-7mh4-33c4/GHSA-ffhg-7mh4-33c4.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}