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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade pcs-snmpUpgrade pcs | Oct 11, 2022 | Sep 6, 2022 |
| Centos_linux | — | Upgrade pcsUpgrade pcs-snmp | Oct 20, 2022 | Sep 6, 2022 |
| Debian | — | Upgrade pcs | Nov 4, 2022 | Sep 6, 2022 |
| Oracle_linux | — | Upgrade pcs-snmpUpgrade pcs | Sep 2, 2022 | Sep 1, 2022 |
| Redhat_linux | — | Upgrade pcs-snmpUpgrade pcs | Oct 20, 2022 | Sep 6, 2022 |
| Rocky_linux | — | Upgrade pcsUpgrade pcs-snmp | Sep 6, 2022 | Sep 1, 2022 |
| Ubuntu | — | Upgrade pcs (Ubuntu Pro) | Jun 26, 2025 | Sep 6, 2022 |
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