Upstream information
Description
A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | CNA (Red Hat) | SUSE |
|---|---|---|
| Base Score | 8.6 | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | None |
| Integrity Impact | Low | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise High Availability Extension 15 SP7 | pacemaker | Affected |
| SUSE Linux Enterprise High Availability Extension 16.0 | pacemaker | Affected |
| SUSE Linux Enterprise High Availability Extension 16.1 | pacemaker | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | pacemaker | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | pacemaker | Affected |
| openSUSE Leap 16.0 | pacemaker | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Availability Extension 12 SP5 | pacemaker | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP4 | pacemaker | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP5 | pacemaker | Affected |
| SUSE Linux Enterprise Server 12 SP5 | pacemaker | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | pacemaker | Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | pacemaker | Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | pacemaker | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | pacemaker | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Software Development Kit 12 SP5 | pacemaker | Affected |
| openSUSE Leap 15.4 | pacemaker | Affected |
| openSUSE Leap 15.5 | pacemaker | Affected |
SUSE Timeline for this CVE
CVE page created: Tue Jun 16 18:06:27 2026CVE page last modified: Wed Jun 17 11:22:32 2026