Vulnerability · Published Aug 28, 2025 · Assigned by redhat
CVE-2025-8067Udisks: out-of-bounds read in udisks daemon
High 8.5
In plain English
A high-severity out-of-bounds read in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 51% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | libudisks2 | 2.10.90-5.el10_0.1 | ALSA-2025:15020 |
| AlmaLinux:8 | libudisks2 | 2.9.0-16.el8_10.1 | ALSA-2025:15017 |
| AlmaLinux:9 | libudisks2 | 2.9.4-11.el9_6.1 | ALSA-2025:15018 |
| AlmaLinux:10 | libudisks2-devel | 2.10.90-5.el10_0.1 | ALSA-2025:15020 |
| AlmaLinux:8 | libudisks2-devel | 2.9.0-16.el8_10.1 | ALSA-2025:15017 |
| AlmaLinux:9 | libudisks2-devel | 2.9.4-11.el9_6.1 | ALSA-2025:15018 |
| AlmaLinux:10 | udisks2 | 2.10.90-5.el10_0.1 | ALSA-2025:15020 |
| AlmaLinux:8 | udisks2 | 2.9.0-16.el8_10.1 | ALSA-2025:15017 |
| AlmaLinux:9 | udisks2 | 2.9.4-11.el9_6.1 | ALSA-2025:15018 |
| AlmaLinux:10 | udisks2-iscsi | 2.10.90-5.el10_0.1 | ALSA-2025:15020 |
| AlmaLinux:8 | udisks2-iscsi | 2.9.0-16.el8_10.1 | ALSA-2025:15017 |
| AlmaLinux:9 | udisks2-iscsi | 2.9.4-11.el9_6.1 | ALSA-2025:15018 |
| AlmaLinux:10 | udisks2-lsm | 2.10.90-5.el10_0.1 | ALSA-2025:15020 |
| AlmaLinux:8 | udisks2-lsm | 2.9.0-16.el8_10.1 | ALSA-2025:15017 |
| AlmaLinux:9 | udisks2-lsm | 2.9.4-11.el9_6.1 | ALSA-2025:15018 |
| AlmaLinux:10 | udisks2-lvm2 | 2.10.90-5.el10_0.1 | ALSA-2025:15020 |
| AlmaLinux:8 | udisks2-lvm2 | 2.9.0-16.el8_10.1 | ALSA-2025:15017 |
| AlmaLinux:9 | udisks2-lvm2 | 2.9.4-11.el9_6.1 | ALSA-2025:15018 |
| Debian:12 | udisks2 | 2.9.4-4+deb12u2 | DEBIAN-CVE-2025-8067 |
| Debian:12 | udisks2 | 2.9.4-4+deb12u2 | DSA-5989-1 |
| Debian:13 | udisks2 | 2.10.1-12.1+deb13u1 | DSA-5989-1 |
| Debian:13 | udisks2 | 2.10.1-12.1+deb13u1 | DEBIAN-CVE-2025-8067 |
| Debian:14 | udisks2 | 2.10.90-3.1 | DEBIAN-CVE-2025-8067 |
| Rocky Linux:10 | udisks2 | 0:2.10.90-5.el10_0.1 | RLSA-2025:15020 |
| Rocky Linux:8 | udisks2 | 0:2.9.0-16.el8_10.1 | RLSA-2025:15017 |
| Rocky Linux:9 | udisks2 | 0:2.9.4-11.el9_6.1 | RLSA-2025:15018 |
| Ubuntu:22.04:LTS | udisks2 | 2.9.4-1ubuntu2.3 | USN-7723-1 |
| Ubuntu:22.04:LTS | udisks2 | 2.9.4-1ubuntu2.3 | UBUNTU-CVE-2025-8067 |
| Ubuntu:24.04:LTS | udisks2 | 2.10.1-6ubuntu1.3 | USN-7723-1 |
| Ubuntu:24.04:LTS | udisks2 | 2.10.1-6ubuntu1.3 | UBUNTU-CVE-2025-8067 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
References
- RHSA-2025:15017 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:15018 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:15020 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:15956 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16021 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16090 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16106 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16121 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16122 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16125 vendor-advisory, x_refsource_REDHAT
- RHSA-2025:16130 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-8067 vdb-entry, x_refsource_REDHAT
- RHBZ#2388623 issue-tracking, x_refsource_REDHAT
- https://lists.debian.org/debian-lts-announce/2025/08/msg00023.html
- http://www.openwall.com/lists/oss-security/2025/08/28/1