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Security advisory

Type: advisorySources: OSVCVE: CVE-2018-16985

In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in LZ5_compress_continue in lz5_compress.c, related to LZ5_compress_fastSmall and MEM_read32. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-16985
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:28 UTC · Revision 1

Source evidence

CVE-2018-16985

core-osv · Original source

Published 13 Sept 2018, 14:29 UTC

In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in LZ5_compress_continue in lz5_compress.c, related to LZ5_compress_fastSmall and MEM_read32. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.

osv:CVE-2018-16985
Complete source record
{
  "id": "69fee9694b8ccc53fde9d0cf5565c26bd7a4660120b52eae849ee6f7e08c6f1d",
  "url": "https://osv.dev/vulnerability/CVE-2018-16985",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-16985",
    "summary": "In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in LZ5_compress_continue in lz5_compress.c, related to LZ5_compress_fastSmall and MEM_read32. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.",
    "evidence": "osv:CVE-2018-16985",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-16985",
      "aliases": [
        "CVE-2018-16985"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/inikep/lizard",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6d3d5d53c8eb39372912b91d935ac4bcc63ac679"
                },
                {
                  "last_affected": "6d3d5d53c8eb39372912b91d935ac4bcc63ac679"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:lizard_project:lizard:2.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0"
                      },
                      {
                        "last_affected": "2.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0",
            "v2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16985.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:21.813876347Z",
      "provider": "osv",
      "references": [
        "https://github.com/inikep/lizard/issues/18"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-16985",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381606,
  "published_at": "2018-09-13T14:29:00.327+00:00"
}