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MEDIUM5.3

GHSA-78mq-xcr3-xm33

golang.org/x/crypto is vulnerable to invoking server panic during CheckHostKey/Authenticate flow

Quick fix

GHSA-78mq-xcr3-xm33 — golang.org/x/crypto: upgrade to the fixed version with the command below.

go get golang.org/x/crypto@v0.52.0

Details

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/golang.org/x/crypto
Introduced in: 0Fixed in: 0.52.0
Fixgo get golang.org/x/crypto@v0.52.0

References