SSH pubkey authetication fails when GSSAPI enabled
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
openssh (Ubuntu) |
Triaged
|
High
|
Unassigned |
Bug Description
Since the upgrade from Ubuntu 20.04 to 22.04 the SSH login via a SSH pubkey to our servers fails, while password and kerberos are still working.
$ssh user@server
sign_and_
This seem related to the bugreport at openssh: https:/
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: openssh-server 1:8.9p1-3ubuntu0.1
ProcVersionSign
Uname: Linux 5.15.0-76-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckR
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Thu Jul 20 17:25:01 2023
InstallationDate: Installed on 2020-08-24 (1060 days ago)
InstallationMedia: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
SourcePackage: openssh
UpgradeStatus: Upgraded to jammy on 2023-07-20 (0 days ago)
I can confirm this behavior here.
I've found I can work around it by unsetting KRB5CCNAME in the client environment.