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.
The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | RedHat | libblockdev-0:3.2.0-4.el10_0 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | libblockdev-0:2.18-5.el7_9.1 | * |
| Red Hat Enterprise Linux 8 | RedHat | libblockdev-0:2.28-7.el8_10 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | libblockdev-0:2.19-13.el8_2 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | libblockdev-0:2.24-6.el8_4 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | libblockdev-0:2.24-9.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | libblockdev-0:2.24-9.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | libblockdev-0:2.24-9.el8_6 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | libblockdev-0:2.28-3.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | libblockdev-0:2.28-14.el9_6 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | libblockdev-0:2.25-12.el9_0 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | libblockdev-0:2.28-5.el9_2 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | libblockdev-0:2.28-11.el9_4 | * |
| Libblockdev | Ubuntu | esm-infra/bionic | * |
| Libblockdev | Ubuntu | esm-infra/focal | * |
| Libblockdev | Ubuntu | jammy | * |
| Libblockdev | Ubuntu | noble | * |
| Libblockdev | Ubuntu | oracular | * |
| Libblockdev | Ubuntu | plucky | * |
| Udisks2 | Ubuntu | devel | * |
| Udisks2 | Ubuntu | esm-infra/bionic | * |
| Udisks2 | Ubuntu | esm-infra/focal | * |
| Udisks2 | Ubuntu | jammy | * |
| Udisks2 | Ubuntu | noble | * |
| Udisks2 | Ubuntu | oracular | * |
| Udisks2 | Ubuntu | plucky | * |