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hivex — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2021-3504

A flaw was found in the hivex library in versions before 1.3.20. It is caused due to a lack of bounds check within the hivex_open function. An attacker could input a specially crafted Windows Registry (hive) file which would cause hivex to read memory beyond its normal bounds or cause the program to crash. The highest threat from this vulnerability is to system availability.

Products
hivex
Affected versions
Not specified
Fixed versions
1.3.20-1
CVEs
CVE-2021-3504
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 00:23 UTC · Revision 1

Source evidence

DEBIAN-CVE-2021-3504

core-osv · Original source

Published 11 May 2021, 23:15 UTC

A flaw was found in the hivex library in versions before 1.3.20. It is caused due to a lack of bounds check within the hivex_open function. An attacker could input a specially crafted Windows Registry (hive) file which would cause hivex to read memory beyond its normal bounds or cause the program to crash. The highest threat from this vulnerability is to system availability.

osv:DEBIAN-CVE-2021-3504

hivex

Fixed versions: 1.3.20-1

hivex

Fixed versions: 1.3.20-1

hivex

Fixed versions: 1.3.20-1

Complete source record
{
  "id": "da71e605a89ffdc49439dcdf3e64f4204b4d05117ccbf5b4ce69304fd06b4b41",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-3504",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2021-3504",
    "summary": "A flaw was found in the hivex library in versions before 1.3.20. It is caused due to a lack of bounds check within the hivex_open function. An attacker could input a specially crafted Windows Registry (hive) file which would cause hivex to read memory beyond its normal bounds or cause the program to crash. The highest threat from this vulnerability is to system availability.",
    "evidence": "osv:DEBIAN-CVE-2021-3504",
    "products": [
      {
        "name": {
          "value": "hivex",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.20-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "hivex",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.20-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "hivex",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.20-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2021-3504",
      "aliases": [
        "DEBIAN-CVE-2021-3504"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.20-1"
                }
              ]
            }
          ],
          "package": {
            "name": "hivex",
            "purl": "pkg:deb/debian/hivex?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3504.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.20-1"
                }
              ]
            }
          ],
          "package": {
            "name": "hivex",
            "purl": "pkg:deb/debian/hivex?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3504.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.20-1"
                }
              ]
            }
          ],
          "package": {
            "name": "hivex",
            "purl": "pkg:deb/debian/hivex?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3504.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:03:15.641153043Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-3504"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2021-3504"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-3504",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 420977,
  "published_at": "2021-05-11T23:15:09.05+00:00"
}