CVE-2025-6019

A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allowactive" 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 "allowactive" 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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6019.json",
    "cwe_ids": [
        "CWE-250"
    ],
    "cna_assigner": "redhat"
}

References

Affected packages

Git / github.com/storaged-project/libblockdev

Affected ranges

Type

GIT

Repo

https://github.com/storaged-project/libblockdev

Events

Introduced

Fixed

221811eb8695c336b3e31911ebfb3a3a690aa090

Database specific

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.3.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*

0.1-1

0.10-1

0.11-1

0.13-1

0.2-1

0.3-1

0.4-1

0.5-1

0.6-1

0.7-1

0.8-1

1.*

1.0-1

1.1-1

1.2-1

1.3-1

1.4-1

1.5-1

2.*

2.0-1

2.1-1

2.10-1

2.11-1

2.12-1

2.13-1

2.14-1

2.15-1

2.16-1

2.17-1

2.18-1

2.19-1

2.2-1

2.20-1

2.21-1

2.22-1

2.23-1

2.3-1

2.4-1

2.5-1

2.6-1

2.7-1

2.8-1

2.9-1

3.*

3.0-1

3.0.1-1

3.0.2-1

3.0.3-1

3.0.4-1

3.1.0-1

3.2.0

3.3.0

libblockdev-0.*

libblockdev-0.1-1

libblockdev-0.10-1

libblockdev-0.11-1

libblockdev-0.13-1

libblockdev-0.2-1

libblockdev-0.3-1

libblockdev-0.4-1

libblockdev-0.5-1

libblockdev-0.6-1

libblockdev-0.7-1

libblockdev-0.8-1

libblockdev-1.*

libblockdev-1.0-1

libblockdev-1.1-1

libblockdev-1.2-1

libblockdev-1.3-1

libblockdev-1.4-1

libblockdev-1.5-1

libblockdev-2.*

libblockdev-2.0-1

libblockdev-2.1-1

libblockdev-2.10-1

libblockdev-2.11-1

libblockdev-2.12-1

libblockdev-2.2-1

libblockdev-2.3-1

libblockdev-2.4-1

libblockdev-2.5-1

libblockdev-2.6-1

libblockdev-2.7-1

libblockdev-2.8-1

libblockdev-2.9-1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6019.json"