Out-of-bounds Read Affecting udisks2-iscsi package, versions <0:2.8.4-1.0.1.el7


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-ORACLE7-UDISKS2ISCSI-13511968
  • published9 Oct 2025
  • disclosed28 Aug 2025

Introduced: 28 Aug 2025

CVE-2025-8067  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Oracle:7 udisks2-iscsi to version 0:2.8.4-1.0.1.el7 or higher.
This issue was patched in ELSA-2025-16130.

NVD Description

Note: Versions mentioned in the description apply only to the upstream udisks2-iscsi package and not the udisks2-iscsi package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users.

CVSS Base Scores

version 3.1