Vulnerability-Lookup

VAR-202506-1204

Vulnerability from variot - Updated: 2025-08-17 23:25

A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The HDF Group of HDF5 contains a buffer error vulnerability, a heap-based buffer overflow vulnerability, and an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. HDF5 is an open-source library for HDF. An attacker could exploit this vulnerability to cause a denial of service

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CVE-2025-6516 (GCVE-0-2025-6516)

Vulnerability from cvelistv5 – Published: 2025-06-23 17:00 – Updated: 2025-06-23 17:40

Title

HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow

Summary

Severity ?

4.8 (Medium)


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

5.3 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

5.3 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.313636	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.313636	signaturepermissions-required
	https://vuldb.com/?submit.592589	third-party-advisory
	https://github.com/HDFGroup/hdf5/issues/5581	issue-tracking
	https://github.com/user-attachments/files/2062685…	exploit

Impacted products

	Vendor	Product	Version
	n/a	HDF5	Affected: 1.14.0 Affected: 1.14.1 Affected: 1.14.2 Affected: 1.14.3 Affected: 1.14.4 Affected: 1.14.5 Affected: 1.14.6

Credits

Rulkallos (VulDB User)

Show details on NVD website

JSON

To clipboard

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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used."
        },
        {
          "lang": "de",
          "value": "In HDF5 bis 1.14.6 wurde eine kritische Schwachstelle gefunden. Das betrifft die Funktion H5F_addr_decode_len der Datei /hdf5/src/H5Fint.c. Durch Manipulation mit unbekannten Daten kann eine heap-based buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs hat dabei lokal zu erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 4.3,
            "vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-23T17:00:17.189Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-313636 | HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.313636"
        },
        {
          "name": "VDB-313636 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.313636"
        },
        {
          "name": "Submit #592589 | HDF5 1.14.6 Heap-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.592589"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/HDFGroup/hdf5/issues/5581"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/user-attachments/files/20626851/reproduce.tar.gz"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-06-23T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-06-23T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-06-23T14:23:40.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-6516",
    "datePublished": "2025-06-23T17:00:17.189Z",
    "dateReserved": "2025-06-23T12:18:36.816Z",
    "dateUpdated": "2025-06-23T17:40:18.086Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202506-1204

CVE-2025-6516 (GCVE-0-2025-6516)

Tags

Sightings

Nomenclature