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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-1787

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause a heap buffer out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2019-1787
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 04:19 UTC · Revision 1

Source evidence

CVE-2019-1787

core-osv · Original source

Published 8 Apr 2019, 19:29 UTC

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause a heap buffer out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

osv:CVE-2019-1787
Complete source record
{
  "id": "deab6282a8673458e95fd8b7c19065314e544718bfb15353da43f6d8c3cd1fa5",
  "url": "https://osv.dev/vulnerability/CVE-2019-1787",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-1787",
    "summary": "A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause a heap buffer out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.",
    "evidence": "osv:CVE-2019-1787",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-1787",
      "aliases": [
        "CVE-2019-1787"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cisco-talos/clamav",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "077cf7859080798aa2d51401b35fe3f5ff5d334f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.101.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "clamav-0.101.0",
            "clamav-0.101.1",
            "clamav-0.97",
            "clamav-0.97rc",
            "clamav-0.96.5",
            "clamav-0.96.4",
            "clamav-0.96.3",
            "clamav-0.96.2",
            "clamav-0.96",
            "clamav-0.96rc2",
            "clamav-0.96rc1",
            "merge-llvm-97877",
            "r5076"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-1787.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:17.043880888Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2019/04/msg00019.html",
        "https://security.gentoo.org/glsa/201904-12",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12181"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "15.0"
                  },
                  {
                    "last_affected": "15.0"
                  },
                  {
                    "introduced": "42.3"
                  },
                  {
                    "last_affected": "42.3"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-1787",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429480,
  "published_at": "2019-04-08T19:29:05.54+00:00"
}