Improper Signature Verification Affecting github.com/golang/crypto package, versions <0.0.0-20200220183623-bac4c82f6975
Snyk CVSS
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-GOLANG-GITHUBCOMGOLANGCRYPTO-551925
- published 21 Feb 2020
- disclosed 21 Feb 2020
- credit Alex Gaynor
Introduced: 21 Feb 2020
CVE-2020-9283 Open this link in a new tabHow to fix?
Upgrade github.com/golang/crypto
to version 0.0.0-20200220183623-bac4c82f6975 or higher.
Overview
github.com/golang/crypto is a SSH client and server
Affected versions of this package are vulnerable to Improper Signature Verification. An attacker can craft an ssh-ed25519
or sk-ssh-...@openssh.com
public key, such that the library will panic when trying to verify a signature with it. Clients can deliver such a public key and signature to any golang.org/x/crypto/ssh
server with a PublicKeyCallback
, and servers can deliver them to any golang.org/x/crypto/ssh
client.