CVE-2025-6019
Libblockdev: lpe from allow_active to root in libblockdev via udisks
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- June 11, 2025
- Published Date
- June 19, 2025
- Last Updated
- February 26, 2026
- Vendor
- , Red Hat
- Product
- , Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support
- Description
- A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allow_active" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an "allow_active" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation. However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system.
CVSS Scores
CVSS v3.1
7.0 - HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC Information
- Exploitation
- none
- Technical Impact
- total
Exploit Status
- Exploited in the Wild
- Yes (2025-10-08 19:51:45 UTC) Source
References
https://access.redhat.com/errata/RHSA-2025:10796
https://access.redhat.com/errata/RHSA-2025:9320
https://access.redhat.com/errata/RHSA-2025:9321
https://access.redhat.com/errata/RHSA-2025:9322
https://access.redhat.com/errata/RHSA-2025:9323
https://access.redhat.com/errata/RHSA-2025:9324
https://access.redhat.com/errata/RHSA-2025:9325
https://access.redhat.com/errata/RHSA-2025:9326
https://access.redhat.com/errata/RHSA-2025:9327
https://access.redhat.com/errata/RHSA-2025:9328
https://access.redhat.com/errata/RHSA-2025:9878
https://access.redhat.com/security/cve/CVE-2025-6019
https://bugzilla.redhat.com/show_bug.cgi?id=2370051
https://cdn2.qualys.com/2025/06/17/suse15-pam-udisks-lpe.txt
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| The Shadowserver (via CIRCL) | 2025-10-08 19:51:45 UTC |
Timeline
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CVE ID Reserved
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CVE Published to Public
-
Added to KEVIntel