Use-After-Free in FreeRDP

{
  "id": "c98a7e17c2624cdb01a06964f7de6797817a9642fee2b4feaaebe158ab167c62",
  "url": "https://osv.dev/vulnerability/CVE-2023-40187",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Use-After-Free in FreeRDP",
    "summary": "FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of the 3.x beta branch are subject to a Use-After-Free issue in the `avc420_ensure_buffer` and `avc444_ensure_buffer` functions. If the value of `piDstSize[x]` is 0, `ppYUVDstData[x]` will be freed. However, in this case `ppYUVDstData[x]` will not have been updated which leads to a Use-After-Free vulnerability. This issue has been addressed in version 3.0.0-beta3. Users of the 3.x beta releases are advised to upgrade. There are no known workarounds for this vulnerability.",
    "evidence": "osv:CVE-2023-40187",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-40187",
      "aliases": [
        "CVE-2023-40187",
        "GHSA-pwf9-v5p9-ch4f"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/freerdp/freerdp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f468a06d88c55b9ed484757326a9528cf27d33f4"
                },
                {
                  "fixed": "59a5726ab36338776539192cae2563951d0ce94b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.0.0-beta1"
                      },
                      {
                        "fixed": "3.0.0-beta3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:freerdp:freerdp:3.0.0:beta1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0-beta1"
                      },
                      {
                        "last_affected": "3.0.0-beta1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:freerdp:freerdp:3.0.0:beta2:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0-beta2"
                      },
                      {
                        "last_affected": "3.0.0-beta2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.0.0-beta1",
            "3.0.0-beta2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-40187.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.516604603Z",
      "provider": "osv",
      "references": [
        "https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/h264.c#L413-L427",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40187.json",
        "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4f",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-40187",
        "https://security.gentoo.org/glsa/202401-16"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-416"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40187.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-40187",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520226,
  "published_at": "2023-08-31T21:21:12.787+00:00"
}