Improper Verification of Cryptographic Signature in golang.org/x/crypto

HIGH 7.5CVE-2020-9283 · GHSA-ffhg-7mh4-33c4 · GO-2020-0012 · Published 20/02/2020 · updated 17/06/2026

Package	Affected versions	Patched versions
golang.org/x/crypto Go	`< 0.0.0-20200220183623-bac4c82f6975`	`0.0.0-20200220183623-bac4c82f6975`
package ssh golang	`= 0.0.0-20200220183623-bac4c82f6975`	No fix yet

Description

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.

NVD description

References

nvd.nist.gov/vuln/detail/CVE-2020-9283 · ADVISORY
golang/crypto commit bac4c82 · WEB
golang/crypto · PACKAGE
go.dev/cl/220357 · WEB
go.googlesource.com/crypto/+/bac4c82f69751a6dd76e702d54b3ceb88adab236 · WEB
groups.google.com/forum · WEB
groups.google.com/g/golang-announce/c/3L45YRc91SY · WEB
lists.debian.org/debian-lts-announce/2020/10/msg00014.html · WEB
lists.debian.org/debian-lts-announce/2020/11/msg00027.html · WEB
lists.debian.org/debian-lts-announce/2020/11/msg00031.html · WEB
pkg.go.dev/vuln/GO-2020-0012 · WEB
exploit-db.com/exploits/48121 · WEB
packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html · WEB
groups.google.com/forum
lists.debian.org/debian-lts-announce/2023/06/msg00017.html

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