Heap-buffer-overflow in pdf_nextobject

{
  "id": "887c1c1e06d4816e794ffe6f65ec9ec520b1ac758c9c0a5a471c807e8478eb5b",
  "url": "https://osv.dev/vulnerability/OSV-2023-356",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-buffer-overflow in pdf_nextobject",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58475 ``` Crash type: Heap-buffer-overflow READ 1 Crash state: pdf_nextobject find_length pdf_extract_obj ```",
    "evidence": "osv:OSV-2023-356",
    "products": [
      {
        "name": {
          "value": "clamav",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "clamav-1.1.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "clamav-1.2.0-rc",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "clamav-1.1.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "clamav-1.1.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "clamav-1.1.1",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2023-356",
      "aliases": [
        "OSV-2023-356"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/Cisco-Talos/clamav.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ba34bc033c32a22fefe18985e186777390c2dc1c"
                },
                {
                  "fixed": "ba49cbfafa82f1cf10774055615e8d21014d44d0"
                }
              ]
            }
          ],
          "package": {
            "name": "clamav",
            "purl": "pkg:generic/clamav",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "clamav-1.1.0",
            "clamav-1.2.0-rc",
            "clamav-1.1.3",
            "clamav-1.1.2",
            "clamav-1.1.1"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/clamav/OSV-2023-356.yaml"
          },
          "ecosystem_specific": {
            "severity": "MEDIUM"
          }
        }
      ],
      "modified": "2026-10-20T17:24:37.040352597Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58475"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 389812,
  "published_at": "2023-04-30T14:03:00.823786+00:00"
}