CVE-2026-19617
Fixed in a distro release EPSS <1%CVSS 5.5
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.
Products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | lvm2 | no fix |
| Debian 13 | lvm2 | no fix |
| Debian 14 | lvm2 | no fix |
| Red Hat hummingbird 1 | lvm2 | 0:2.03.43-1.hum1 |
| Red Hat hummingbird 1 | lvm2-dbusd | 0:2.03.43-1.hum1 |
| Red Hat hummingbird 1 | lvm2-devel | 0:2.03.43-1.hum1 |
| Red Hat hummingbird 1 | lvm2-libs | 0:2.03.43-1.hum1 |
| Red Hat hummingbird 1 | lvm2-lockd | 0:2.03.43-1.hum1 |
| Red Hat hummingbird 1 | lvm2-testsuite | 0:2.03.43-1.hum1 |
| Ubuntu 14.04 LTS | lvm2 | no fix |
| Ubuntu 16.04 LTS | lvm2 | no fix |
| Ubuntu 18.04 LTS | lvm2 | no fix |
| Ubuntu 20.04 LTS | lvm2 | no fix |
| Ubuntu 22.04 LTS | lvm2 | no fix |
| Ubuntu 24.04 LTS | lvm2 | no fix |
| Ubuntu 26.04 LTS | lvm2 | no fix |
| Ubuntu 26.10 | lvm2 | no fix |