Skip to content
Heist/ feed
Back to feed
Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-7147

A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2019-7147
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 04:13 UTC · Revision 1

Source evidence

CVE-2019-7147

core-osv · Original source

Published 29 Jan 2019, 00:29 UTC

A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.

osv:CVE-2019-7147
Complete source record
{
  "id": "3efee310b0695f365c0063d59833b54e1f4fa1f2ace40551f234deb70d21a0f6",
  "url": "https://osv.dev/vulnerability/CVE-2019-7147",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-7147",
    "summary": "A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.",
    "evidence": "osv:CVE-2019-7147",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-7147",
      "aliases": [
        "CVE-2019-7147"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/netwide-assembler/nasm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "28b69e2a633a850e724f309a5ec81bac8638084a"
                },
                {
                  "last_affected": "28b69e2a633a850e724f309a5ec81bac8638084a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nasm:netwide_assembler:2.14:rc16:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.14-rc16"
                      },
                      {
                        "last_affected": "2.14-rc16"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.14-rc16",
            "nasm-2.14rc16"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-7147.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:15.462455956Z",
      "provider": "osv",
      "references": [
        "https://bugzilla.nasm.us/show_bug.cgi?id=3392544"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-7147",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429162,
  "published_at": "2019-01-29T00:29:00.313+00:00"
}