CVE-2025-8067

Udisks: out-of-bounds read in udisks daemon

publishedCWE-125

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.

Technical severity8.5 highCVSS 3.1 · CNA: redhat

Published2025-08-28Source updated 2026-11-04

Collected2026-11-042 attributed sources

Fixes and workarounds

Workaround

There's no available mitigation other than installing the updated package as soon as available.

Source: CNA: redhat

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
udisks storaged-project `udisks2` https://github.com/storaged-project/udisks	≥ 0; < 2.10.2 (affected, semver) ≥ 2.10.3; < 2.10.91 (affected, semver) Other versions: unaffected	CNA: redhat
Red Hat Enterprise Linux 10 Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.10.90-5.el10_0.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 7 Extended Lifecycle Support Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.8.4-1.el7_9.2; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8 Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-16.el8_10.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.8.3-2.el8_2.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-6.el8_4.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-6.el8_4.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-9.el8_6.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.6 Telecommunications Update Service Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-9.el8_6.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-9.el8_6.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-13.el8_8.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.0-13.el8_8.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9 Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.4-11.el9_6.1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.4-3.el9_0.2; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.4-7.el9_2.2; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9.4 Extended Update Support Red Hat `udisks2` https://access.redhat.com/downloads/content/package-browser/	≥ 0:2.9.4-10.el9_4.2; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 6 Red Hat `udisks` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 8.5 high	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H`	CNA: redhat

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://access.redhat.com/errata/RHSA-2025:15017CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:15018CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:15020CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:15956CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16021CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16090CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16106CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16121CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16122CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16125CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16130CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-8067CNA: redhat · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2388623CNA: redhat · issue-tracking, x_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2025/08/msg00023.htmlADP: CVE
http://www.openwall.com/lists/oss-security/2025/08/28/1ADP: CVE

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