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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-19648

In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2019-19648
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:39 UTC · Revision 1

Source evidence

CVE-2019-19648

core-osv · Original source

Published 9 Dec 2019, 01:15 UTC

In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.

osv:CVE-2019-19648
Complete source record
{
  "id": "46030a1ca3a091fe9b5fb88c9a1c5a7e33b5bf527de57838d16c187bf5911c7c",
  "url": "https://osv.dev/vulnerability/CVE-2019-19648",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-19648",
    "summary": "In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.",
    "evidence": "osv:CVE-2019-19648",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-19648",
      "aliases": [
        "CVE-2019-19648"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/virustotal/yara",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b9f925bb4e2b998bd6bb2f2e3cc2087c62fdd5b9"
                },
                {
                  "last_affected": "b9f925bb4e2b998bd6bb2f2e3cc2087c62fdd5b9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:virustotal:yara:3.11.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.11.0"
                      },
                      {
                        "last_affected": "3.11.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.11.0",
            "v3.11.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19648.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:52.067059294Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FKNXSH5ERG6NELTXCYVJLUPJJJ2TNEBD/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXM224OLGI6KAOROLDPPGGCZ2OQVQ6HH/",
        "https://github.com/VirusTotal/yara/issues/1178"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  },
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-19648",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382275,
  "published_at": "2019-12-09T01:15:10.357+00:00"
}