ubuntu-cve-2025-11266
Vulnerability from osv_ubuntu
Published
2025-12-12 21:15
Modified
2026-04-22 07:53
Summary
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.
Severity
6.6 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"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": "libgdcm2.2",
"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": "libvtkgdcm2.2",
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@2.2.4-1.1ubuntu4+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": "2.6.3-3ubuntu3"
},
{
"binary_name": "libgdcm-java",
"binary_version": "2.6.3-3ubuntu3"
},
{
"binary_name": "libgdcm-tools",
"binary_version": "2.6.3-3ubuntu3"
},
{
"binary_name": "libgdcm2.6",
"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": "libvtkgdcm2.6",
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@2.6.3-3ubuntu3?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": "2.8.4-1build2"
},
{
"binary_name": "libgdcm-java",
"binary_version": "2.8.4-1build2"
},
{
"binary_name": "libgdcm-tools",
"binary_version": "2.8.4-1build2"
},
{
"binary_name": "libgdcm2.8",
"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": "libvtkgdcm2.8",
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@2.8.4-1build2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": "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-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"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@3.0.5-1.1ubuntu2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.8.8-9ubuntu4",
"2.8.8-9ubuntu5",
"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": "3.0.10-1build2"
},
{
"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-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"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@3.0.10-1build2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.8-2",
"3.0.10-1",
"3.0.10-1build2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgdcm-cil",
"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-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"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@3.0.22-2.1ubuntu1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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-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-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"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "gdcm",
"purl": "pkg:deb/ubuntu/gdcm@3.0.24-5ubuntu3?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.24-5ubuntu2",
"3.0.24-5ubuntu3"
]
}
],
"aliases": [],
"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.",
"id": "UBUNTU-CVE-2025-11266",
"modified": "2026-04-22T07:53:20Z",
"published": "2025-12-12T21:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-11266"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-11266"
},
{
"type": "REPORT",
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json"
},
{
"type": "REPORT",
"url": "https://github.com/malaterre/GDCM/releases/tag/v3.2.2"
},
{
"type": "REPORT",
"url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-11266"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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