# ALBA-2021:5228: sssd bug fix and enhancement update

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

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Not stated
- **Victim action needed:** Not stated
- **Fix available:** Yes
- **Published:** 21 Dec 2021

## 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?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libsss_nss_idmap-devel` | AlmaLinux:8 | All versions | 2.5.2-2.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.

## Fix prompt for AI coding agents

```text
Check this codebase for ALBA-2021:5228 and fix it if it is affected.

What it is: ALBA-2021:5228 is a vulnerability in libsss_nss_idmap-devel, published on 21 Dec 2021. 
Exploitation: There is no known exploitation of ALBA-2021:5228 in the wild and no public exploit code.

Affected product: libsss_nss_idmap-devel. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/ALBA-2021-5228/ (Markdown: https://insights.sbomify.com/ALBA-2021-5228/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/ALBA-2021:5228

---
From sbomify Insights: https://insights.sbomify.com/ALBA-2021-5228/
Summaries are generated and may contain mistakes; the official description above is the record.