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NULL Pointer Dereference Affecting golang.org/x/crypto/ssh package, versions <0.0.0-20201216223049-8b5274cf687f

0.0
high

  • Attack Complexity

    Low

  • Availability

    High

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  • snyk-id

    SNYK-GOLANG-GOLANGORGXCRYPTOSSH-2331920

  • published

    9 Jan 2022

  • disclosed

    9 Jan 2022

  • credit

    Joern Schneewesiz

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Introduced: 9 Jan 2022

CVE-2020-29652 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade golang.org/x/crypto/ssh to version 0.0.0-20201216223049-8b5274cf687f or higher.

Overview

golang.org/x/crypto/ssh is a SSH client and server

Affected versions of this package are vulnerable to NULL Pointer Dereference via a crafted authentication request message for the gssapi-with-mic method which will cause NewServerConn to panic if ServerConfig.GSSAPIWithMICConfig is nil.