UBUNTU-CVE-2025-11266

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Source

https://ubuntu.com/security/CVE-2025-11266

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-11266

Upstream

CVE-2025-11266

Published

2025-12-12T21:15:00Z

Modified

2026-01-20T18:12:10.447442Z

Severity

6.6 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H CVSS Calculator
6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.

References

Affected packages

Ubuntu:16.04:LTS

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@2.6.3-3ubuntu3?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.4.4-4

2.4.4-4build1

2.4.4-4ubuntu1

2.6.1-3

2.6.2-1

2.6.2-2

2.6.2-3

2.6.3-1

2.6.3-1ubuntu1

2.6.3-2ubuntu1

2.6.3-3ubuntu1

2.6.3-3ubuntu3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-cil",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libgdcm2-dev",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libgdcm2.6",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm-cil",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm-java",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm2-dev",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm2.6",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "python-gdcm",
            "binary_version": "2.6.3-3ubuntu3"
        },
        {
            "binary_name": "python-vtkgdcm",
            "binary_version": "2.6.3-3ubuntu3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"

Ubuntu:18.04:LTS

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@2.8.4-1build2?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.8.2-3build1

2.8.3-1

2.8.4-1

2.8.4-1build2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-cil",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libgdcm2-dev",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libgdcm2.8",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libvtkgdcm-cil",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libvtkgdcm-java",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libvtkgdcm2-dev",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "libvtkgdcm2.8",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "python-gdcm",
            "binary_version": "2.8.4-1build2"
        },
        {
            "binary_name": "python-vtkgdcm",
            "binary_version": "2.8.4-1build2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"

Ubuntu:20.04:LTS

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@3.0.5-1.1ubuntu2?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.8.8-9ubuntu4

2.8.8-9ubuntu5

3.*

3.0.4-2

3.0.4-2build1

3.0.4-2ubuntu1

3.0.5-1ubuntu1

3.0.5-1.1ubuntu1

3.0.5-1.1ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-cil",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libgdcm-dev",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libgdcm3.0",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libvtkgdcm-cil",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libvtkgdcm-dev",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libvtkgdcm-java",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "libvtkgdcm3.0",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "python3-gdcm",
            "binary_version": "3.0.5-1.1ubuntu2"
        },
        {
            "binary_name": "python3-vtkgdcm",
            "binary_version": "3.0.5-1.1ubuntu2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"

Ubuntu:22.04:LTS

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@3.0.10-1build2?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.8-2

3.0.10-1

3.0.10-1build2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-cil",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libgdcm-dev",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libgdcm3.0",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libvtkgdcm-cil",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libvtkgdcm-dev",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libvtkgdcm-java",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "libvtkgdcm3.0",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "python3-gdcm",
            "binary_version": "3.0.10-1build2"
        },
        {
            "binary_name": "python3-vtkgdcm",
            "binary_version": "3.0.10-1build2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"

Ubuntu:24.04:LTS

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@3.0.22-2.1ubuntu1?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.21-2

3.0.22-1

3.0.22-2build1

3.0.22-2build2

3.0.22-2.1build1

3.0.22-2.1build2

3.0.22-2.1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-cil",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libgdcm-dev",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libgdcm3.0t64",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libvtkgdcm-9.1t64",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libvtkgdcm-dev",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "python3-gdcm",
            "binary_version": "3.0.22-2.1ubuntu1"
        },
        {
            "binary_name": "python3-vtkgdcm",
            "binary_version": "3.0.22-2.1ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"

Ubuntu:25.10

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@3.0.24-5ubuntu3?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.24-5ubuntu2

3.0.24-5ubuntu3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-dev",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "libgdcm3.0t64",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm-9.1t64",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm-dev",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "python3-gdcm",
            "binary_version": "3.0.24-5ubuntu3"
        },
        {
            "binary_name": "python3-vtkgdcm",
            "binary_version": "3.0.24-5ubuntu3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"

Ubuntu:Pro:14.04:LTS

gdcm

Package

Name: gdcm
Purl: pkg:deb/ubuntu/gdcm@2.2.4-1.1ubuntu4+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.3-2ubuntu3

2.2.3-2ubuntu4

2.2.4-1.1ubuntu1

2.2.4-1.1ubuntu2

2.2.4-1.1ubuntu3

2.2.4-1.1ubuntu4

2.2.4-1.1ubuntu4+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgdcm-cil",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libgdcm-java",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libgdcm-tools",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libgdcm2-dev",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libgdcm2.2",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libvtkgdcm-cil",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libvtkgdcm-java",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libvtkgdcm-tools",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libvtkgdcm2-dev",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "libvtkgdcm2.2",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "php5-gdcm",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "php5-vtkgdcm",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "python-gdcm",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        },
        {
            "binary_name": "python-vtkgdcm",
            "binary_version": "2.2.4-1.1ubuntu4+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11266.json"