{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.0.1"
              }
            ]
          }
        ]
      }
    }
  ],
  "details": "There is an invalid memory access vulnerability in the function TextPage::findGaps() located at TextOutputDev.c in Xpdf 4.01, which can (for example) be triggered by sending a crafted pdf file to the pdftops binary. It allows an attacker to cause Denial of Service (Segmentation fault) or possibly have unspecified other impact.",
  "id": "CVE-2019-9877",
  "modified": "2026-03-13T21:56:40.933690604Z",
  "published": "2019-03-21T16:01:17.530Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41265"
    },
    {
      "type": "EVIDENCE",
      "url": "https://research.loginsoft.com/bugs/invalid-memory-access-in-textpagefindgaps-xpdf-4-01/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}