Vulnerability-Lookup

UBUNTU-CVE-2026-44034 (CVE-2026-44034)

Vulnerability from osv_ubuntu – Published: 2026-10-08 13:17 – Updated: 2026-10-17 09:42 – Source website

Details

A heap-based out-of-bounds read in DcmRLECodecDecoder::decodeFrame() in dcmdata/libsrc/dcrleccd.cc of OFFIS DCMTK 3.7.0 allows an attacker to read up to 63 bytes of adjacent heap memory, or cause a crash, via a crafted RLE Lossless DICOM file whose pixel data fragment is shorter than the 64-byte RLE header. The function copies 64 bytes without checking the fragment length, a check that the sibling function decode() already performs. Applications that decode RLE images frame by frame (for example, through DcmPixelData::getUncompressedFrame()) are affected. The dcmdrle command-line tool uses decode() and is not affected. The issue is fixed in commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d.

Severity

4.4 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

4.8 (Medium)


                    
                      CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-44034	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-44034	REPORT
	https://github.com/DCMTK/dcmtk/commit/45469f3c300…	REPORT
	https://support.dcmtk.org/redmine/issues/1213	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.6.1~20150924-5ubuntu0.1~esm3"
          },
          {
            "binary_name": "libdcmtk5",
            "binary_version": "3.6.1~20150924-5ubuntu0.1~esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.6.1~20150924-5ubuntu0.1~esm3?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.0-15.1",
        "3.6.1~20150629-5",
        "3.6.1~20150924-4",
        "3.6.1~20150924-5",
        "3.6.1~20150924-5ubuntu0.1~esm1",
        "3.6.1~20150924-5ubuntu0.1~esm2",
        "3.6.1~20150924-5ubuntu0.1~esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.6.2-3ubuntu0.1~esm3"
          },
          {
            "binary_name": "libdcmtk12",
            "binary_version": "3.6.2-3ubuntu0.1~esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.6.2-3ubuntu0.1~esm3?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.2-2",
        "3.6.2-2build1",
        "3.6.2-3",
        "3.6.2-3build1",
        "3.6.2-3build2",
        "3.6.2-3build3",
        "3.6.2-3ubuntu0.1~esm1",
        "3.6.2-3ubuntu0.1~esm2",
        "3.6.2-3ubuntu0.1~esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.6.4-2.1ubuntu0.2+esm1"
          },
          {
            "binary_name": "libdcmtk14",
            "binary_version": "3.6.4-2.1ubuntu0.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.6.4-2.1ubuntu0.2+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.4-2.1",
        "3.6.4-2.1build1",
        "3.6.4-2.1build2",
        "3.6.4-2.1ubuntu0.1~esm1",
        "3.6.4-2.1ubuntu0.1",
        "3.6.4-2.1ubuntu0.1+esm1",
        "3.6.4-2.1ubuntu0.2",
        "3.6.4-2.1ubuntu0.2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.6.6-5ubuntu0.1~esm2"
          },
          {
            "binary_name": "libdcmtk16",
            "binary_version": "3.6.6-5ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.6.6-5ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.5-1",
        "3.6.6-3ubuntu1",
        "3.6.6-3ubuntu2",
        "3.6.6-4",
        "3.6.6-5",
        "3.6.6-5ubuntu0.1~esm1",
        "3.6.6-5ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.6.7-9.1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libdcmtk17t64",
            "binary_version": "3.6.7-9.1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.6.7-9.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.7-9",
        "3.6.7-9.1build2",
        "3.6.7-9.1build3",
        "3.6.7-9.1build4",
        "3.6.7-9.1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.7.0+really3.7.0-7ubuntu1"
          },
          {
            "binary_name": "dcmtk-data",
            "binary_version": "3.7.0+really3.7.0-7ubuntu1"
          },
          {
            "binary_name": "libdcmtk20",
            "binary_version": "3.7.0+really3.7.0-7ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.7.0+really3.7.0-7ubuntu1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.0+really3.6.9-1",
        "3.7.0+really3.7.0-2",
        "3.7.0+really3.7.0-5",
        "3.7.0+really3.7.0-6",
        "3.7.0+really3.7.0-7ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dcmtk",
            "binary_version": "3.7.0+really3.6.9-1"
          },
          {
            "binary_name": "dcmtk-data",
            "binary_version": "3.7.0+really3.6.9-1"
          },
          {
            "binary_name": "libdcmtk19",
            "binary_version": "3.7.0+really3.6.9-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "dcmtk",
        "purl": "pkg:deb/ubuntu/dcmtk@3.7.0+really3.6.9-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.9-5build1",
        "3.6.9-6",
        "3.7.0+really3.6.9-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A heap-based out-of-bounds read in DcmRLECodecDecoder::decodeFrame() in dcmdata/libsrc/dcrleccd.cc of OFFIS DCMTK 3.7.0 allows an attacker to read up to 63 bytes of adjacent heap memory, or cause a crash, via a crafted RLE Lossless DICOM file whose pixel data fragment is shorter than the 64-byte RLE header. The function copies 64 bytes without checking the fragment length, a check that the sibling function decode() already performs. Applications that decode RLE images frame by frame (for example, through DcmPixelData::getUncompressedFrame()) are affected. The dcmdrle command-line tool uses decode() and is not affected. The issue is fixed in commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d.",
  "id": "UBUNTU-CVE-2026-44034",
  "modified": "2026-10-17T09:42:29Z",
  "published": "2026-10-08T13:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-44034"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-44034"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/DCMTK/dcmtk/commit/45469f3c30037e9c7159290e4bb74cd7b3b9ef1d"
    },
    {
      "type": "REPORT",
      "url": "https://support.dcmtk.org/redmine/issues/1213"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-44034"
  ]
}

CVE-2026-44034 (GCVE-0-2026-44034)

Vulnerability from cvelistv5 – Published: 2026-10-08 12:55 – Updated: 2026-10-08 14:09

Title

Heap out-of-bounds read in DCMTK RLE decodeFrame()

Summary

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

4.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 14:09 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

securin CNA under the mitre root

CNA scorecard B 80/100 over 71 records in the last 180 days details

References

2 references

URL	Tags
https://support.dcmtk.org/redmine/issues/1213	issue-trackingvendor-advisory
https://github.com/DCMTK/dcmtk/commit/45469f3c300…	patch

Impacted products

1 product

Vendor	Product	Version
OFFIS	DCMTK	Affected: 3.7.0 cpe:2.3:a:offis:dcmtk:3.7.0:::::::*

Credits

Arjun Basnet from Securin

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44034",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T14:09:13.036801Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-08T14:09:23.670Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/DCMTK/dcmtk",
          "cpes": [
            "cpe:2.3:a:offis:dcmtk:3.7.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "modules": [
            "dcmdata"
          ],
          "product": "DCMTK",
          "programFiles": [
            "dcmdata/libsrc/dcrleccd.cc"
          ],
          "repo": "https://github.com/DCMTK/dcmtk",
          "vendor": "OFFIS",
          "versions": [
            {
              "status": "affected",
              "version": "3.7.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Arjun Basnet from Securin"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A heap-based out-of-bounds read in DcmRLECodecDecoder::decodeFrame() in dcmdata/libsrc/dcrleccd.cc of OFFIS DCMTK 3.7.0 allows an attacker to read up to 63 bytes of adjacent heap memory, or cause a crash, via a crafted RLE Lossless DICOM file whose pixel data fragment is shorter than the 64-byte RLE header. The function copies 64 bytes without checking the fragment length, a check that the sibling function decode() already performs. Applications that decode RLE images frame by frame (for example, through DcmPixelData::getUncompressedFrame()) are affected. The dcmdrle command-line tool uses decode() and is not affected. The issue is fixed in commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T12:55:09.201Z",
        "orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
        "shortName": "securin"
      },
      "references": [
        {
          "name": "DCMTK issue #1213",
          "tags": [
            "issue-tracking",
            "vendor-advisory"
          ],
          "url": "https://support.dcmtk.org/redmine/issues/1213"
        },
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/DCMTK/dcmtk/commit/45469f3c30037e9c7159290e4bb74cd7b3b9ef1d"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Update to a DCMTK version that contains commit 45469f3c30037e9c7159290e4bb74cd7b3b9ef1d. As of the publication date, no tagged release after DCMTK 3.7.0 includes this fix, so apply the commit or build from the current master branch."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-25T00:00:00.000Z",
          "value": "CVE ID shared with the vendor"
        },
        {
          "lang": "en",
          "time": "2026-05-23T00:00:00.000Z",
          "value": "Fix committed by the vendor"
        },
        {
          "lang": "en",
          "time": "2026-06-19T00:00:00.000Z",
          "value": "Vendor approved publication"
        }
      ],
      "title": "Heap out-of-bounds read in DCMTK RLE decodeFrame()"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
    "assignerShortName": "securin",
    "cveId": "CVE-2026-44034",
    "datePublished": "2026-10-08T12:55:09.201Z",
    "dateReserved": "2026-05-05T02:49:00.667Z",
    "dateUpdated": "2026-10-08T14:09:23.670Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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