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Bug 2076505 - PAM Kerberos authentication incorrectly fails with a clock skew error
Summary: PAM Kerberos authentication incorrectly fails with a clock skew error
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: samba
Version: 8.7
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: rc
: ---
Assignee: Andreas Schneider
QA Contact: Denis Karpelevich
URL:
Whiteboard:
Depends On: 2076504 2078918
Blocks: 2078920 2079299
TreeView+ depends on / blocked
 
Reported: 2022-04-19 08:43 UTC by Pavel Filipensky
Modified: 2022-11-08 12:26 UTC (History)
7 users (show)

Fixed In Version: samba-4.15.5-7.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 2076504
: 2078920 2079299 (view as bug list)
Environment:
Last Closed: 2022-11-08 10:45:48 UTC
Type: Bug
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-119177 0 None None None 2022-04-19 08:50:46 UTC
Red Hat Issue Tracker SSSD-4574 0 None None None 2022-04-25 07:43:26 UTC
Red Hat Product Errata RHBA-2022:7698 0 None None None 2022-11-08 10:46:39 UTC
Samba Project 15046 0 None None None 2022-04-19 08:43:58 UTC

Description Pavel Filipensky 2022-04-19 08:43:59 UTC
+++ This bug was initially created as a clone of Bug #2076504 +++

Description of problem:

From https://bugzilla.samba.org/show_bug.cgi?id=15046:

The samba testsuite has found that PAM Kerberos authentication can fail with an incorrect clock skew too great error. In the samba testsuite the server and the client run in the same machine.

The reason is that the time_offset passed to kerberos_return_pac() in winbindd_raw_kerberos_login() can be wrong. This time_offset is retrieved from an ADS_STRUCT directly casted from domain->private_data, when domain->private_data can point to a winbind_internal_pipes struct.

We have to remove the private_data field from winbindd_domain struct and use typed pointers.

Comment 7 errata-xmlrpc 2022-11-08 10:45:48 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (samba bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:7698


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