Security advisory

{
  "id": "37dbb340c1210c0805f444e01318c3ae4fb3f5bdca7b652a473254e92b758b7c",
  "url": "https://osv.dev/vulnerability/CVE-2017-11554",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-11554",
    "summary": "There is a stack consumption vulnerability in the lex function in parser.hpp (as used in sassc) in LibSass 3.4.5. A crafted input will lead to a remote denial of service.",
    "evidence": "osv:CVE-2017-11554",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-11554",
      "aliases": [
        "CVE-2017-11554"
      ],
      "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/sass/libsass",
              "type": "GIT",
              "events": [
                {
                  "introduced": "31573210c0d120ae56aaea543a0dbab5255cdfb7"
                },
                {
                  "last_affected": "31573210c0d120ae56aaea543a0dbab5255cdfb7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libsass:libsass:3.4.5:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.4.5"
                      },
                      {
                        "last_affected": "3.4.5"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.4.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-11554.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:41.745861232Z",
      "provider": "osv",
      "references": [
        "https://github.com/sass/libsass/issues/2445",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1471780"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-11554",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379637,
  "published_at": "2017-07-23T03:29:01+00:00"
}