CVE intelligence and bounded remediation

CVE-2023-3758 — A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users

High CVSS 7.1

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.

Severity
High
CVSS
7.1 (3.1)
Published
2024-04-18
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-362

Affected products

  • fedoraproject / sssd
  • redhat / codeready_linux_builder / 8.0
  • redhat / codeready_linux_builder_eus / 8.6
  • redhat / codeready_linux_builder_eus / 8.8
  • redhat / codeready_linux_builder_eus / 9.0
  • redhat / codeready_linux_builder_eus / 9.2

Showing 6 representative product identities from 79 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Race condition, TOCTOU, and lifecycle synchronization

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Check exposure

  • Map concurrent actors, shared state, lock boundaries, signals, callbacks, retries, and check-then-use sequences in the affected path.
  • Determine whether untrusted users can influence timing, object names, filesystem state, or repeated state transitions.
  • Identify clustered and multi-process behavior that repository-local tests may not represent.

Remediate safely

  • Make the sensitive state transition atomic or protect it with a consistently ordered synchronization primitive.
  • Perform authorization and invariant checks on the same authoritative object and transaction used for the operation.
  • Use unique private resources, safe ownership transfer, and idempotent operations; add deterministic concurrency regression tests.

Authoritative sources

Complete CVE record and remediation plan

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