Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 0 before 3.3.1 |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:3.2.0-4.el10_0 before * |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:2.18-5.el7_9.1 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 0:2.28-7.el8_10 before * |
| Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 0:2.19-13.el8_2 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:2.24-6.el8_4 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:2.24-9.el8_6 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 0:2.24-9.el8_6 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | unaffected 0:2.24-9.el8_6 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | unaffected 0:2.28-3.el8_8 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:2.28-14.el9_6 before * |
| Red Hat / Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | unaffected 0:2.25-12.el9_0 before * |
| Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:2.28-5.el9_2 before * |
| Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 0:2.28-11.el9_4 before * |
CWE
CWE-250
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
ADP enrichment
No English description supplied.
- http://www.openwall.com/lists/oss-security/2025/06/17/5
- http://www.openwall.com/lists/oss-security/2025/06/17/6
- https://lists.debian.org/debian-lts-announce/2025/06/msg00018.html
- http://www.openwall.com/lists/oss-security/2025/06/18/1
- https://www.bleepingcomputer.com/news/linux/new-linux-udisks-flaw-lets-attackers-get-root-on-major-linux-distros/
- https://news.ycombinator.com/item?id=44325861
No English description supplied.
No references supplied.