UBUNTU-CVE-2025-7519

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Source
https://ubuntu.com/security/CVE-2025-7519
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-7519
Upstream
Downstream
Related
Published
2025-07-14T14:15:00Z
Modified
2026-04-16T10:51:09.872949Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly.

References

Affected packages

Ubuntu:18.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@0.105-20ubuntu0.18.04.6?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.105-18
0.105-20
0.105-20ubuntu0.18.04.1
0.105-20ubuntu0.18.04.4
0.105-20ubuntu0.18.04.5
0.105-20ubuntu0.18.04.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "libpolkit-backend-1-0"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "libpolkit-backend-1-dev"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "0.105-20ubuntu0.18.04.6",
            "binary_name": "policykit-1"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"
Ubuntu:20.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@0.105-26ubuntu1.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.105-26ubuntu1
0.105-26ubuntu1.1
0.105-26ubuntu1.2
0.105-26ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.105-26ubuntu1.3",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "0.105-26ubuntu1.3",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "0.105-26ubuntu1.3",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "0.105-26ubuntu1.3",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "0.105-26ubuntu1.3",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "0.105-26ubuntu1.3",
            "binary_name": "policykit-1"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"
Ubuntu:22.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@0.105-33ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.105-33ubuntu0.1

Affected versions

0.*
0.105-31
0.105-31ubuntu1
0.105-31.1
0.105-32
0.105-33

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "pkexec"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "policykit-1"
        },
        {
            "binary_version": "0.105-33ubuntu0.1",
            "binary_name": "polkitd"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue",
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"
Ubuntu:24.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@124-2ubuntu1.24.04.3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
124-2ubuntu1.24.04.3

Affected versions

Other
123-1
123-3
124-1
124-1ubuntu1
124-2ubuntu1
124-2ubuntu1.*
124-2ubuntu1.24.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "pkexec"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "policykit-1"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "polkitd"
        },
        {
            "binary_version": "124-2ubuntu1.24.04.3",
            "binary_name": "polkitd-pkla"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue",
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"
Ubuntu:25.10
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@126-2ubuntu0.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
126-2ubuntu0.1

Affected versions

Other
126-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "pkexec"
        },
        {
            "binary_version": "126-2ubuntu0.1",
            "binary_name": "polkitd"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue",
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"
Ubuntu:Pro:14.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@0.105-4ubuntu3.14.04.6+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.105-3ubuntu3
0.105-4ubuntu1
0.105-4ubuntu2
0.105-4ubuntu2.14.04.1
0.105-4ubuntu3.14.04.1
0.105-4ubuntu3.14.04.2
0.105-4ubuntu3.14.04.5
0.105-4ubuntu3.14.04.6
0.105-4ubuntu3.14.04.6+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "libpolkit-backend-1-0"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "libpolkit-backend-1-dev"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1",
            "binary_name": "policykit-1"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"
Ubuntu:Pro:16.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1@0.105-14.1ubuntu0.5+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.105-11ubuntu2
0.105-13
0.105-13ubuntu1
0.105-14
0.105-14.1
0.105-14.1ubuntu0.1
0.105-14.1ubuntu0.4
0.105-14.1ubuntu0.5
0.105-14.1ubuntu0.5+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "gir1.2-polkit-1.0"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "libpolkit-agent-1-0"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "libpolkit-agent-1-dev"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "libpolkit-backend-1-0"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "libpolkit-backend-1-dev"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "libpolkit-gobject-1-0"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "libpolkit-gobject-1-dev"
        },
        {
            "binary_version": "0.105-14.1ubuntu0.5+esm1",
            "binary_name": "policykit-1"
        }
    ],
    "priority_reason": "Root privileges are required to exploit this issue"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-7519.json"