# CVE-2023-3758: Sssd: race condition during authorization leads to gpo policies functioning inconsistently

> A race condition in SSSD causes inconsistent GPO policy application, potentially allowing improper access to resources.

- **Severity:** High 7.1 (`CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Apr 2024
- **Updated:** 6 Nov 2025
- **Also known as:** ALSA-2024:2571, ALSA-2024:3270, CLSA-2025-1748945377, CLSA-2025-1748947069, CLSA-2025-1748967240, CLSA-2025-1751143797, DEBIAN-CVE-2023-3758, GHSA-7pwr-cfrc-px4f, MGASA-2024-0176, OESA-2024-1546, OESA-2024-1572, OESA-2024-1573, RHSA-2024:1919, RHSA-2024:1920, RHSA-2024:1921, RHSA-2024:1922, RHSA-2024:2571, RHSA-2024:3270, RLSA-2024:2571, RLSA-2024:3270, SUSE-SU-2024:1549-1, SUSE-SU-2024:1563-1, SUSE-SU-2024:1577-1, SUSE-SU-2024:1578-1, SUSE-SU-2024:1579-1, SUSE-SU-2024:1941-1, SUSE-SU-2025:20131-1, UBUNTU-CVE-2023-3758, USN-6836-1

## What is CVE-2023-3758?

CVE-2023-3758 is a high-severity vulnerability in Fedoraproject Fedora, published on 18 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may lead to improper authorization issues, granting or denying access to resources inappropriately.

Weakness: CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2023-3758?

It affects 23 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libipa_hbac` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_autofs` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_certmap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_idmap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_nss_idmap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_nss_idmap-devel` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_simpleifp` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libsss_sudo` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `python3-libipa_hbac` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `python3-libsss_nss_idmap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `python3-sss` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `python3-sss-murmur` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `python3-sssdconfig` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-ad` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-client` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-common` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-common-pac` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-dbus` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-idp` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-ipa` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-kcm` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-krb5` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-krb5-common` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-ldap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-nfs-idmap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-polkit-rules` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-proxy` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-tools` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `sssd-winbind-idmap` | AlmaLinux:8 | All versions | 2.9.4-3.el8_10 |
| `libipa_hbac` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_autofs` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_certmap` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_idmap` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_nss_idmap` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_nss_idmap-devel` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_simpleifp` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `libsss_sudo` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `python3-libipa_hbac` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |
| `python3-libsss_nss_idmap` | AlmaLinux:9 | All versions | 2.9.4-6.el9_4 |

Products: Fedoraproject Fedora, Fedoraproject Sssd, Redhat Codeready Linux Builder, Redhat Codeready Linux Builder Eus, Redhat Codeready Linux Builder for Arm64, Redhat Codeready Linux Builder for Arm64 Eus, Redhat Codeready Linux Builder for Ibm Z Systems, Redhat Codeready Linux Builder for Ibm Z Systems Eus, Redhat Codeready Linux Builder for Power Little Endian, Redhat Codeready Linux Builder for Power Little Endian Eus, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux for Arm 64, Redhat Enterprise Linux for Arm 64 Eus, Redhat Enterprise Linux for Ibm Z Systems, Redhat Enterprise Linux for Ibm Z Systems Eus, Redhat Enterprise Linux for Power Little Endian, Redhat Enterprise Linux for Power Little Endian Eus, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server for Power Little Endian Update Services for Sap Solutions and 3 more.

## How do I fix CVE-2023-3758?

Apply the vendor's patch.

## Is CVE-2023-3758 being exploited?

There is no known exploitation of CVE-2023-3758 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3758 and fix it if it is affected.

What it is: CVE-2023-3758 is a high-severity vulnerability in Fedoraproject Fedora, published on 18 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-3758 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. 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/CVE-2023-3758/ (Markdown: https://insights.sbomify.com/CVE-2023-3758/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3758
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3758
- OSV: https://osv.dev/vulnerability/CVE-2023-3758

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3758/
Summaries are generated and may contain mistakes; the official description above is the record.