Security advisory

{
  "id": "6e2f757db880dca98c66d4797c8f052c20118de877ab5596a185db4e037602c7",
  "url": "https://osv.dev/vulnerability/CVE-2017-5581",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-5581",
    "summary": "Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries.",
    "evidence": "osv:CVE-2017-5581",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-5581",
      "aliases": [
        "CVE-2017-5581"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tigervnc/tigervnc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e25272fc74ef09987ccaa33b9bf1736397c76fdf"
                },
                {
                  "fixed": "18c020124ff1b2441f714da2017f63dba50720ba"
                },
                {
                  "fixed": "6172cc01dd7d1493064571b341c978e2df7725d7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "18c020124ff1b2441f714da2017f63dba50720ba"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6172cc01dd7d1493064571b341c978e2df7725d7"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.7.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.7.0",
            "v1.6.90",
            "v1.1.90",
            "v0.0.90"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-5581.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-5581-878a012b",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
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                  ]
                },
                "source": "https://github.com/tigervnc/tigervnc/commit/18c020124ff1b2441f714da2017f63dba50720ba",
                "target": {
                  "file": "common/rfb/PixelBuffer.cxx"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-5581-cb090a90",
                "digest": {
                  "length": 652,
                  "function_hash": "332696160378536359901209007462624368553"
                },
                "source": "https://github.com/tigervnc/tigervnc/commit/18c020124ff1b2441f714da2017f63dba50720ba",
                "target": {
                  "file": "common/rfb/PixelBuffer.cxx",
                  "function": "ModifiablePixelBuffer::fillRect"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:22:46Z"
          }
        }
      ],
      "modified": "2026-10-20T13:22:46.693288577Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2017:2000",
        "https://github.com/TigerVNC/tigervnc/releases/tag/v1.7.1",
        "https://security.gentoo.org/glsa/201702-19",
        "https://github.com/TigerVNC/tigervnc/commit/18c020124ff1b2441f714da2017f63dba50720ba",
        "https://github.com/TigerVNC/tigervnc/pull/399"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-5581",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387592,
  "published_at": "2017-02-28T18:59:00.36+00:00"
}