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CVE-2025-6019— Libblockdev: lpe from allow_active to root in libblockdev via udisks

Quick assessment

Affected
CVE-2025-6019
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Storaged libblockdev是Storaged开源的一个用于操纵块设备的库。 Storaged libblockdev存在安全漏洞，该漏洞源于与udisks守护进程交互方式不当，可能导致本地权限提升。

CVSS 7.0 · High EPSS 0.46% · P38

I. Basic Information for CVE-2025-6019

Vulnerability Information
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Vulnerability Title
Libblockdev: lpe from allow_active to root in libblockdev via udisks
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
Storaged libblockdev 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Storaged libblockdev是Storaged开源的一个用于操纵块设备的库。 Storaged libblockdev存在安全漏洞，该漏洞源于与udisks守护进程交互方式不当，可能导致本地权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 3.3.1 -
Red Hat Red Hat Enterprise Linux 10 0:3.2.0-4.el10_0 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.18-5.el7_9.1 ~ * cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 0:2.28-7.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.19-13.el8_2 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.24-6.el8_4 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.24-9.el8_6 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.24-9.el8_6 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.24-9.el8_6 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:2.28-3.el8_8 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 9 0:2.28-14.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.25-12.el9_0 ~ * cpe:/a:redhat:rhel_e4s:9.0::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:2.28-5.el9_2 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:2.28-11.el9_4 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream

II. Public POCs for CVE-2025-6019

# POC Description Source Link Shenlong Link
1 None https://github.com/guinea-offensive-security/CVE-2025-6019 POC Details
2 exploit https://github.com/And-oss/CVE-2025-6019-exploit POC Details
3 None https://github.com/neko205-mx/CVE-2025-6019_Exploit POC Details
4 Exploit for CVE-2025-6019 https://github.com/dreysanox/CVE-2025-6019_Poc POC Details
5 None https://github.com/harshitvarma05/CVE-2025-6019 POC Details
6 None https://github.com/robbin0919/CVE-2025-6019 POC Details
7 None https://github.com/phamdinhquy2512/CVE-2025-6019-Exploitation POC Details
8 None https://github.com/0x5chltz/CVE-2025-6019 POC Details
9 Script-only privilege escalation chain using CVE-2025-6019 and UDisks2 (no filesystem image included). https://github.com/symphony2colour/CVE-2025-6019-udisks-lpe-no-image POC Details
10 None https://github.com/boboaung1337/CVE-2025-6019 POC Details
11 None https://github.com/HexRazor/CVE-2025-6019 POC Details
12 CVE-2025-6019: udisks2 XFS Resize TOCTOU Privilege Escalation https://github.com/JM00NJ/CVE-2025-6019-udisks2-XFS-Resize-TOCTOU-Privilege-Escalation POC Details
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III. Intelligence Information for CVE-2025-6019

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Vendor Advisories for CVE-2025-6019 (7)

IV. Related Vulnerabilities

Same weakness: CWE-250

V. Comments for CVE-2025-6019

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