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Security advisory

Type: advisorySources: OSVCVE: CVE-2020-11045

In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bound read in in update_read_bitmap_data that allows client memory to be read to an image buffer. The result displayed on screen as colour.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-11045
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:13 UTC · Revision 1

Source evidence

CVE-2020-11045

core-osv · Original source

Published 7 May 2020, 19:15 UTC

In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bound read in in update_read_bitmap_data that allows client memory to be read to an image buffer. The result displayed on screen as colour.

osv:CVE-2020-11045
Complete source record
{
  "id": "94adcdac39df6d08f434f554f4fe536f338419e1184cabe65fd11e1b27a6235d",
  "url": "https://osv.dev/vulnerability/CVE-2020-11045",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-11045",
    "summary": "In FreeRDP after 1.0 and before 2.0.0, there is an out-of-bound read in in update_read_bitmap_data that allows client memory to be read to an image buffer. The result displayed on screen as colour.",
    "evidence": "osv:CVE-2020-11045",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2020-11045",
      "aliases": [
        "CVE-2020-11045",
        "GHSA-3x39-248q-f4q6"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/freerdp/freerdp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5ab2bed8749747b8e4b2ed431fd102bc726be684"
                },
                {
                  "fixed": "f8890a645c221823ac133dbf991f8a65ae50d637"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.1.0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f8890a645c221823ac133dbf991f8a65ae50d637"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.0-rc4",
            "2.0.0-rc3",
            "2.0.0-rc2",
            "2.0.0-rc1",
            "2.0.0-rc0",
            "2.0.0-beta1+android11",
            "2.0.0-beta1+android10",
            "1.2.0-beta1+android9",
            "1.2.0-beta1+android7",
            "1.1.0-beta+2013071101",
            "1.1.0-beta1+ios4",
            "1.1.0-beta1+android5",
            "1.1.0-beta1+android4",
            "1.1.0-beta1+ios3",
            "1.1.0-beta1+ios2",
            "1.1.0-beta1+android3",
            "1.1.0-beta1+android2",
            "1.1.0-beta1+ios1",
            "1.1.0-beta1",
            "1.0.1",
            "1.0.0",
            "1.0-beta5",
            "1.0-beta4",
            "1.0-beta2",
            "1.0-beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11045.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-11045-28b89200",
                "digest": {
                  "length": 1297,
                  "function_hash": "206436341201980652058609057959198552998"
                },
                "source": "https://github.com/freerdp/freerdp/commit/f8890a645c221823ac133dbf991f8a65ae50d637",
                "target": {
                  "file": "libfreerdp/core/update.c",
                  "function": "update_read_bitmap_data"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-11045-8488ed58",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "174082662618401205352853601715769749832",
                    "84560628654313816427147087026633431051",
                    "182426011417203487958277892954071378642",
                    "308865737782997131972517872718766365445"
                  ]
                },
                "source": "https://github.com/freerdp/freerdp/commit/f8890a645c221823ac133dbf991f8a65ae50d637",
                "target": {
                  "file": "libfreerdp/core/update.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:22:43Z"
          }
        }
      ],
      "modified": "2026-10-20T13:22:43.808537349Z",
      "provider": "osv",
      "references": [
        "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3x39-248q-f4q6",
        "https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html",
        "https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html",
        "https://usn.ubuntu.com/4379-1/",
        "https://usn.ubuntu.com/4382-1/",
        "https://github.com/FreeRDP/FreeRDP/commit/f8890a645c221823ac133dbf991f8a65ae50d637",
        "https://github.com/FreeRDP/FreeRDP/issues/6005"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  },
                  {
                    "introduced": "19.10"
                  },
                  {
                    "last_affected": "19.10"
                  },
                  {
                    "introduced": "20.04"
                  },
                  {
                    "last_affected": "20.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-11045",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387587,
  "published_at": "2020-05-07T19:15:11.783+00:00"
}