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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2025-6019

Libblockdev: lpe from allow_active to root in libblockdev via udisks

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Status
Published
Published
Updated
Assigning organization
redhat

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

libblockdev

Default version status: unaffected

  • 0 to < 3.3.1affected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:3.2.0-4.el10_0 to < *unaffected

Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support

Default version status: affected

  • 0:2.18-5.el7_9.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:2.28-7.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support

Default version status: affected

  • 0:2.19-13.el8_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Default version status: affected

  • 0:2.24-6.el8_4 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Default version status: affected

  • 0:2.24-9.el8_6 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Default version status: affected

  • 0:2.24-9.el8_6 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

Default version status: affected

  • 0:2.24-9.el8_6 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

Default version status: affected

  • 0:2.28-3.el8_8 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:2.28-14.el9_6 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Default version status: affected

  • 0:2.25-12.el9_0 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Default version status: affected

  • 0:2.28-5.el9_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support

Default version status: affected

  • 0:2.28-11.el9_4 to < *unaffected

References