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.
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Sat, 21 Jun 2025 23:15:00 +0000
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Fri, 20 Jun 2025 14:15:00 +0000
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Thu, 19 Jun 2025 12:30:00 +0000
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Thu, 19 Jun 2025 12:00:00 +0000
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Description | No description is available for this CVE. | 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. |
Title | libblockdev: LPE from allow_active to root in libblockdev via udisks | Libblockdev: lpe from allow_active to root in libblockdev via udisks |
First Time appeared |
Redhat
Redhat enterprise Linux |
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CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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Vendors & Products |
Redhat
Redhat enterprise Linux |
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Wed, 18 Jun 2025 15:00:00 +0000
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Description | No description is available for this CVE. | |
Title | libblockdev: LPE from allow_active to root in libblockdev via udisks | |
Weaknesses | CWE-250 | |
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threat_severity
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2025-06-19T11:55:57.380Z
Updated: 2025-06-21T22:58:36.379Z
Reserved: 2025-06-11T22:14:52.625Z
Link: CVE-2025-6019

Updated: 2025-06-19T12:07:16.097Z

Status : Received
Published: 2025-06-19T12:15:19.727
Modified: 2025-06-21T23:15:24.433
Link: CVE-2025-6019
