Security advisory

{
  "id": "27b4b38706f37eed9a45d44ccfe9df02795c7a585f20cf6ef9fe295d814a263b",
  "url": "https://osv.dev/vulnerability/CVE-2020-29260",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-29260",
    "summary": "libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().",
    "evidence": "osv:CVE-2020-29260",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-29260",
      "aliases": [
        "CVE-2020-29260"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libvnc/libvncserver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2aa20dad4c23c18948d3f63b33f9dfec1f837729"
                },
                {
                  "last_affected": "2aa20dad4c23c18948d3f63b33f9dfec1f837729"
                },
                {
                  "fixed": "bef41f6ec4097a8ee094f90a1b34a708fbd757ec"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libvncserver_project:libvncserver:0.9.13:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.9.13"
                      },
                      {
                        "last_affected": "0.9.13"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bef41f6ec4097a8ee094f90a1b34a708fbd757ec"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.9.13",
            "LibVNCServer-0.9.13"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-29260.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-29260-00d88fd8",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "145650390561675877157337595442663683024",
                    "27327034834671594585687000636908883729",
                    "103390895157138148484084781850920631023"
                  ]
                },
                "source": "https://github.com/libvnc/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec",
                "target": {
                  "file": "libvncclient/vncviewer.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-29260-7a0d9672",
                "digest": {
                  "length": 1509,
                  "function_hash": "109028498731436706933690559203678153926"
                },
                "source": "https://github.com/libvnc/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec",
                "target": {
                  "file": "libvncclient/vncviewer.c",
                  "function": "rfbClientCleanup"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:59:35Z"
          }
        }
      ],
      "modified": "2026-10-20T13:59:35.760747112Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2022/09/msg00035.html",
        "https://github.com/LibVNC/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-29260",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388486,
  "published_at": "2022-09-02T23:15:08.227+00:00"
}