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TI-2022-02533 Aliases CVE-2022-2735GHSA-7xr9-rmm4-cq6v

Incorrect default permissions in ClusterLabs/pcs

Priority LOW 34CWE-276Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the "hacluster" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.

Why it matters now

EPSS 0.00318 24th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—ClusterLabs/pcsAffects v0.10.5 and later including all 0.11.x.—No fix listedCNA
  • ClusterLabs/pcs Vendor— Affected Affects v0.10.5 and later including all 0.11.x. Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:clusterlabs:pcs:*:*:*:*:*:*:*:*0.10.5 – 0.11.3VulnerableClusterLabs
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:clusterlabs:pcs:*:*:*:*:*:*:*:* Versions 0.10.5 – 0.11.3 Vulnerable ·ClusterLabs
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

Red Hat 4 advisories

  • RHSA-2022:6341 Released 2022-09-05 · Red Hat rating Important
    pcs security update
    • Red Hat Enterprise Linux High Availability EUS (v. 8.2) pcs-0.10.4-6.el8_2.3, pcs-snmp-0.10.4-6.el8_2.3
    • Red Hat Enterprise Linux Resilient Storage EUS (v. 8.2) pcs-0.10.4-6.el8_2.3, pcs-snmp-0.10.4-6.el8_2.3
  • RHSA-2022:6314 Released 2022-09-01 · Red Hat rating Important
    pcs security update
    • Red Hat Enterprise Linux HighAvailability (v. 8) pcs-0.10.12-6.el8_6.2, pcs-snmp-0.10.12-6.el8_6.2
    • Red Hat Enterprise Linux ResilientStorage (v. 8) pcs-0.10.12-6.el8_6.2, pcs-snmp-0.10.12-6.el8_6.2
  • RHSA-2022:6313 Released 2022-09-01 · Red Hat rating Important
    pcs security update
    • Red Hat Enterprise Linux High Availability (v. 9) pcs-0.11.1-10.el9_0.2, pcs-snmp-0.11.1-10.el9_0.2
    • Red Hat Enterprise Linux Resilient Storage (v. 9) pcs-0.11.1-10.el9_0.2, pcs-snmp-0.11.1-10.el9_0.2
Show 1 more Red Hat advisories
  • RHSA-2022:6312 Released 2022-09-01 · Red Hat rating Important
    pcs security update
    • Red Hat Enterprise Linux HighAvailability EUS (v.8.4) pcs-0.10.8-1.el8_4.2, pcs-snmp-0.10.8-1.el8_4.2
    • Red Hat Enterprise Linux ResilientStorage EUS (v.8.4) pcs-0.10.8-1.el8_4.2, pcs-snmp-0.10.8-1.el8_4.2

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux High Availability (v. 9)Fixed RHSA-2022:6313
Red Hat Enterprise Linux High Availability EUS (v. 8.2)Fixed RHSA-2022:6341
Red Hat Enterprise Linux HighAvailability (v. 8)Fixed RHSA-2022:6314
Red Hat Enterprise Linux HighAvailability EUS (v.8.4)Fixed RHSA-2022:6312
Red Hat Enterprise Linux Resilient Storage (v. 9)Fixed RHSA-2022:6313
Red Hat Enterprise Linux Resilient Storage EUS (v. 8.2)Fixed RHSA-2022:6341
Red Hat Enterprise Linux ResilientStorage (v. 8)Fixed RHSA-2022:6314
Red Hat Enterprise Linux ResilientStorage EUS (v.8.4)Fixed RHSA-2022:6312
Not affected: 1 product
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-2735
  2. 2026-10-03 Alias added: GHSA-7xr9-rmm4-cq6v

References

Patch 1

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences