golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability
High severity
GitHub Reviewed
Published
May 24, 2022
to the GitHub Advisory Database
•
Updated Oct 2, 2023
Package
Affected versions
< 0.0.0-20201216223049-8b5274cf687f
Patched versions
0.0.0-20201216223049-8b5274cf687f
Description
Published by the National Vulnerability Database
Dec 17, 2020
Published to the GitHub Advisory Database
May 24, 2022
Reviewed
Feb 8, 2023
Last updated
Oct 2, 2023
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-micmethod which will cause NewServerConn to panic via a nil pointer dereference if ServerConfig.GSSAPIWithMICConfig is nil.References