# CVE-2022-4254: Other in SSSD

> Attackers can inject LDAP filters via unsanitized certificate data in SSSD, potentially bypassing authentication or accessing unauthorized data.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Feb 2023
- **Updated:** 27 Mar 2025
- **Also known as:** DEBIAN-CVE-2022-4254, GHSA-x75f-4m4h-6374, RHSA-2023:0397, RHSA-2023:0403, RHSA-2023:0442, SUSE-SU-2023:0200-1, SUSE-SU-2023:0204-1, SUSE-SU-2023:0292-1, SUSE-SU-2023:0300-1, SUSE-SU-2023:0301-1, UBUNTU-CVE-2022-4254, USN-6156-1

## What is CVE-2022-4254?

CVE-2022-4254 is a high-severity vulnerability in Redhat Enterprise Linux, published on 1 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

Weakness: CWE-90 (Improper Neutralization of Special Elements used in an LDAP Query)

## Which versions are affected by CVE-2022-4254?

It affects 13 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libipa_hbac` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libipa_hbac-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_autofs` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_certmap` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_certmap-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_idmap` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_idmap-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_nss_idmap` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_nss_idmap-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_simpleifp` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_simpleifp-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_sudo` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `python-libipa_hbac` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `python-libsss_nss_idmap` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `python-sss` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `python-sss-murmur` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `python-sssdconfig` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-ad` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-client` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-common` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-common-pac` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-dbus` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-ipa` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-kcm` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-krb5` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-krb5-common` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-ldap` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-libwbclient` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-libwbclient-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-polkit-rules` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-proxy` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-tools` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `sssd-winbind-idmap` | Red Hat:enterprise_linux:7::client | All versions | 0:1.16.5-10.el7_9.15 |
| `libipa_hbac-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_certmap-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_idmap-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_nss_idmap-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.16.5-10.el7_9.15 |
| `libsss_simpleifp-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:1.16.5-10.el7_9.15 |

Products: Fedoraproject Sssd, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux for Ibm Z Systems, Redhat Enterprise Linux for Power Big Endian, Redhat Enterprise Linux for Power Little Endian, Redhat Enterprise Linux for Scientific Computing, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server for Power Little Endian Update Services for Sap Solutions, Redhat Enterprise Linux Server Tus, Redhat Enterprise Linux Server Update Services for Sap Solutions, Redhat Enterprise Linux Workstation.

## How do I fix CVE-2022-4254?

Apply the vendor's patch.

## Is CVE-2022-4254 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4254 exists.

## Other vulnerabilities in Redhat Enterprise Linux

- [CVE-2012-3462](https://insights.sbomify.com/CVE-2012-3462/): Auth bypass in sssd (high 8.8)
- [CVE-2026-104048](https://insights.sbomify.com/CVE-2026-104048/): Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation (medium 6.8)
- [CVE-2015-5292](https://insights.sbomify.com/CVE-2015-5292/): Denial of service in n/a (medium 6.8)
- [CVE-2026-12610](https://insights.sbomify.com/CVE-2026-12610/): Sssd: use-after-free crash in sssd' 'sssd_pam' process (medium 6.4)
- [CVE-2026-104046](https://insights.sbomify.com/CVE-2026-104046/): Sssd: sssd: denial of service via incomplete identity provider authentication requests (medium 6.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4254 and fix it if it is affected.

What it is: CVE-2022-4254 is a high-severity vulnerability in Redhat Enterprise Linux, published on 1 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4254 exists.

Affected product: Redhat Enterprise Linux. 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-2022-4254/ (Markdown: https://insights.sbomify.com/CVE-2022-4254/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4254
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4254
- OSV: https://osv.dev/vulnerability/CVE-2022-4254

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4254/
Summaries are generated and may contain mistakes; the official description above is the record.