# CVE-2023-27530: pcs: The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.  Security Fix(...

CVE-2023-27530 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2023-27530, released March 10, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-27530
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: 0.0183
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 10, 2023

## Description

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.  Security Fix(es):  * rubygem-rack: Denial of service in Multipart MIME parsing (CVE-2023-27530)  * rubygem-rack: denial of service in header parsing (CVE-2023-27539)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Bug Fix(es):  * Command 'pcs config checkpoint diff' does not show configuration differences between checkpoints (BZ#2180700)  * Need a way to add a scsi fencing device to a cluster without requiring a restart of all cluster resources (BZ#2180706)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | pcs RHEL 8 | 0:0.10.15-4.el8_8.1 | [RHSA-2023:3082](https://patchblox.com/security/data/fix/linux/rhsa-2023-3082.md) | May 16, 2023 |
| Linux | pcs RHEL 9 | 0:0.11.4-7.el9_2 | [RHSA-2023:2652](https://patchblox.com/security/data/fix/linux/rhsa-2023-2652.md) | May 9, 2023 |
| Linux | pcs almalinux 8 | 0.10.15-4.el8_8.1.alma | [ALSA-2023:3082](https://patchblox.com/security/data/fix/linux/alsa-2023-3082.md) | May 16, 2023 |
| Linux | pcs almalinux 9 | 0.11.4-7.el9_2 | [ALSA-2023:2652](https://patchblox.com/security/data/fix/linux/alsa-2023-2652.md) | May 9, 2023 |
| Linux | pcs ol 8 | 0:0.10.15-4.0.1.el8_8.1 | [ELSA-2023-3082](https://patchblox.com/security/data/fix/linux/elsa-2023-3082.md) | May 29, 2023 |
| Linux | pcs ol 9 | 0:0.11.4-7.el9_2 | [ELSA-2023-12595](https://patchblox.com/security/data/fix/linux/elsa-2023-12595.md) | Jul 20, 2023 |
| Linux | pcs rocky 8 | 0:0.10.15-4.el8_8.1 | [RLSA-2023:3082](https://patchblox.com/security/data/fix/linux/rlsa-2023-3082.md) | May 18, 2023 |
| Linux | pcs rocky 9 | 0:0.11.4-7.el9_2 | [RLSA-2023:2652](https://patchblox.com/security/data/fix/linux/rlsa-2023-2652.md) | May 25, 2023 |
| Linux | pcs-snmp RHEL 8 | 0:0.10.15-4.el8_8.1 | [RHSA-2023:3082](https://patchblox.com/security/data/fix/linux/rhsa-2023-3082.md) | May 16, 2023 |
| Linux | pcs-snmp RHEL 9 | 0:0.11.4-7.el9_2 | [RHSA-2023:2652](https://patchblox.com/security/data/fix/linux/rhsa-2023-2652.md) | May 9, 2023 |
| Linux | pcs-snmp almalinux 8 | 0.10.15-4.el8_8.1.alma | [ALSA-2023:3082](https://patchblox.com/security/data/fix/linux/alsa-2023-3082.md) | May 16, 2023 |
| Linux | pcs-snmp almalinux 9 | 0.11.4-7.el9_2 | [ALSA-2023:2652](https://patchblox.com/security/data/fix/linux/alsa-2023-2652.md) | May 9, 2023 |
| Linux | pcs-snmp ol 8 | 0:0.10.15-4.0.1.el8_8.1 | [ELSA-2023-3082](https://patchblox.com/security/data/fix/linux/elsa-2023-3082.md) | May 29, 2023 |
| Linux | pcs-snmp ol 9 | 0:0.11.4-7.el9_2 | [ELSA-2023-12595](https://patchblox.com/security/data/fix/linux/elsa-2023-12595.md) | Jul 20, 2023 |
| Linux | ruby-rack Debian 12.15 (bookworm) | 2.2.6.4-1 | [DEBIAN-CVE-2023-27530](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27530.md) | Mar 10, 2023 |
| Linux | ruby-rack Debian 13.5 (trixie) | 2.2.6.4-1 | [DEBIAN-CVE-2023-27530](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27530.md) | Mar 10, 2023 |
| Linux | ruby-rack Debian 14 | 2.2.6.4-1 | [DEBIAN-CVE-2023-27530](https://patchblox.com/security/data/fix/linux/debian-cve-2023-27530.md) | Mar 10, 2023 |
| Linux | ruby-rack Ubuntu 20.04 LTS (focal) | 2.0.7-2ubuntu0.1+esm4 | [ruby-rack 2.0.7-2ubuntu0.1+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ruby-rack-2.0.7-2ubuntu0.1-esm4.md) | Mar 21, 2023 |
| Linux | ruby-rack Ubuntu 22.04.1 LTS (jammy) | 2.1.4-5ubuntu1+esm4 | [ruby-rack 2.1.4-5ubuntu1+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-rack-2.1.4-5ubuntu1-esm4.md) | Mar 21, 2023 |

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