Execution with Unnecessary Privileges Affecting libblockdev-btrfs package, versions <0:2.28-7.0.1.el8_10


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-ORACLE8-LIBBLOCKDEVBTRFS-10574826
  • published1 Jul 2025
  • disclosed19 Jun 2025

Introduced: 19 Jun 2025

NewCVE-2025-6019  (opens in a new tab)
CWE-250  (opens in a new tab)

How to fix?

Upgrade Oracle:8 libblockdev-btrfs to version 0:2.28-7.0.1.el8_10 or higher.
This issue was patched in ELSA-2025-9878.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libblockdev-btrfs package and not the libblockdev-btrfs package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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 Base Scores

version 3.1