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GHSA-3vm4-22fp-5rfm

golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability

Source: GitHub Advisory Database (reviewed) High CVE-2020-29652

Packages

EcosystemPackageAffectedFixed in
Go golang.org/x/crypto < 0.0.0-20201216223049-8b5274cf687f 0.0.0-20201216223049-8b5274cf687f

Details

As written in the advisory (Markdown source, shown as plain text).

A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers. An attacker can craft an authentication request message for the `gssapi-with-mic` method which will cause NewServerConn to panic via a nil pointer dereference if ServerConfig.GSSAPIWithMICConfig is nil.

References

External links from the advisory. They lead to third-party sites.