Skip to content
VulniPulse
Sign in
Advisory severityHigh7.1Vendor: MediumRed Hat Linux

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

This high-severity Red Hat Linux advisory covers CVE-2023-3758 affecting Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9.0 Extended Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2023-3758 Source published Source updated

VulniPulse record published

CVE-2023-3758
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

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.

This flaw is triggered by a race condition which makes it difficult to exploit. Also, it depends on non default GPO configuration on the server side.

This two aspects lowers the severity of the issue to Moderate. Red Hat severity: Moderate — CVSS 7.1 (CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-362.

Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.6 Extended Update Support; Red Hat Enterprise Linux 8.8 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.0 Extended Update Support; Red Hat Enterprise Linux 9.2 Extended Update Support; Red Hat Virtualization 4 for Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.

Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat fixing advisory: RHSA-2024:3270, RHSA-2024:1921, RHSA-2024:1922, RHSA-2024:2571, RHSA-2024:1919, RHSA-2024:1920.

Affected products named by the advisory: Red Hat package: sssd.

Is CVE-2023-3758 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2023-3758 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2023-3758?

Upgrade to a fixed release named by Red Hat:

  • sssd-0:2.9.4-3.el8_10
  • sssd-0:2.6.2-4.el8_6.3
  • sssd-0:2.8.2-4.el8_8.2
  • sssd-0:2.9.4-6.el9_4
  • sssd-0:2.6.2-4.el9_0.3
  • sssd-0:2.8.2-5.el9_2.4
  • RHSA-2024:3270
  • RHSA-2024:1921
  • RHSA-2024:1922
  • RHSA-2024:2571
  • RHSA-2024:1919
  • RHSA-2024:1920

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 3 days ago·verify at source

Fixed versions
  • sssd-0:2.9.4-3.el8_10
  • sssd-0:2.6.2-4.el8_6.3
  • sssd-0:2.8.2-4.el8_8.2
  • sssd-0:2.9.4-6.el9_4
  • sssd-0:2.6.2-4.el9_0.3
  • sssd-0:2.8.2-5.el9_2.4
  • RHSA-2024:3270
  • RHSA-2024:1921
  • RHSA-2024:1922
  • RHSA-2024:2571
  • RHSA-2024:1919
  • RHSA-2024:1920

Official advisory · high-confidence parse· fetched 3 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • A mitigation can be applied to the sssd.conf file that would make the occurrence of the race condition more difficult: 1. Increase the GPO cache time out editing the following configuration directive in sssd.conf file: a) ad_gpo_cache_timeout = 3600 Ps.: This value (3600) should make the cache time out in one hour but would make GPO updates propagation from AD server to local machines take longer. [1] https://access.redhat.com/documentation/pt-br/red_hat_enterprise_linux/7/html/windows_integration_guide/sssd-gpo

Official advisory · high-confidence parse· fetched 3 days ago·verify at source

Get an email when Red Hat RHEL & SELinux publishes the next one.

See Red Hat RHEL & SELinux's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).

Alert me about Red Hat RHEL & SELinux

More Red Hat Linux advisories

All Red Hat Linux advisories

iPhone and Android apps · New on the App Store

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Download on the App StoreGet CVE alerts on AndroidSee app features

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.

Sign in to join the discussion.