5.5
Medium
CVE-2026-19617 Libdm: lvm2: libdm: denial of service via uncontrolled recursion in config parser
Description
A flaw was found in libdm. A local attacker could craft a malicious Logical Volume Manager (LVM) metadata configuration with deeply nested structures. This could lead to uncontrolled recursion in the libdm configuration file parser, exhausting the stack and causing any LVM command reading the metadata to crash. This vulnerability results in a Denial of Service (DoS) for affected systems.
CVSS 3.1 detail
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitable with local access to the machine, without an account and if a user takes an action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- Interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Hardened Images 2.03 | earliest → < 2.03.43-1.hum1 | 2.03.43-1.hum1 |
| Red Hat OpenShift Container Platform 4 | Versions not published | |
| Red Hat OpenShift Container Platform 5 | Versions not published |
References
- RHSA-2026:73989 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2514626 bugzilla.redhat.com
Timeline
- Published
- Last modified
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