ALBA-2021:5228 sssd bug fix and enhancement update

Not scored Published

SSSD update fixes functional bugs in name lookups, autofs delays, and domain handling, with no explicit security vulnerability described.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Not stated
Victim action needed
Not stated
Fix
Available

What is ALBA-2021:5228?

ALBA-2021:5228 is a vulnerability in libsss_nss_idmap-devel, published on 21 Dec 2021.

Official description

The System Security Services Daemon (SSSD) service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch (NSS) and the Pluggable Authentication Modules (PAM) interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources.

Bug Fix(es) and Enhancement(s):

  • Lookup with fully-qualified name does not work with 'cache_first = True' (BZ#2013379)

  • autofs lookups for unknown mounts are delayed for 50s (BZ#2016923)

  • 2.5.x based SSSD adds more AD domains than it should based on the configuration file (not trusted and from a different forest) (BZ#2018440)

  • Make backtrace less "chatty" (avoid duplicate backtraces) (BZ#2021499)

  • pam responder does not call initgroups to refresh the user entry (BZ#2028828)

Which versions are affected by ALBA-2021:5228?

Linux distribution packages (1)
libsss_nss_idmap-devel AlmaLinux:8All versions2.5.2-2.el8_5.3

How do I fix ALBA-2021:5228?

Apply the vendor's patch.

Is ALBA-2021:5228 being exploited?

There is no known exploitation of ALBA-2021:5228 in the wild and no public exploit code.

Sources

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