Security advisory

{
  "id": "daef46431fda7a56af7f1b7958c496f5d817ea064e0736228f3dd4ec6a61ca7f",
  "url": "https://osv.dev/vulnerability/CVE-2019-6247",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-6247",
    "summary": "An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3. A heap-based buffer overflow bug in svgpp_agg_render may lead to code execution. In the render_scanlines_aa_solid function, the blend_hline function is called repeatedly multiple times. blend_hline is equivalent to a loop containing write operations. Each call writes a piece of heap data, and multiple calls overwrite the data in the heap.",
    "evidence": "osv:CVE-2019-6247",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-6247",
      "aliases": [
        "CVE-2019-6247"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/svgpp/svgpp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "17e54ff509ae8d9433b9e6d09b9855aac64ded99"
                },
                {
                  "last_affected": "17e54ff509ae8d9433b9e6d09b9855aac64ded99"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:svgpp:svgpp:1.2.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.3"
                      },
                      {
                        "last_affected": "1.2.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.2.3",
            "v1.2.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6247.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:40.723394796Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2023/04/msg00001.html",
        "https://github.com/svgpp/svgpp/issues/70"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:antigrain:agg:2.4:*:*:*:*:*:*:*"
            ],
            "vendor_product": "antigrain:agg",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.4"
                  },
                  {
                    "last_affected": "2.4"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-6247",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382755,
  "published_at": "2019-01-13T00:29:00.57+00:00"
}