ubuntu-cve-2023-40187
Vulnerability from osv_ubuntu
Published
2023-08-31 22:15
Modified
2025-07-16 05:09
Summary
Details

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.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "freerdp2-dev",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "freerdp2-shadow-x11",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "freerdp2-wayland",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "freerdp2-x11",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libfreerdp-client2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libfreerdp-server2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libfreerdp-shadow-subsystem2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libfreerdp-shadow2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libfreerdp2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libuwac0-0",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libuwac0-dev",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libwinpr-tools2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libwinpr2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "libwinpr2-dev",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          },
          {
            "binary_name": "winpr-utils",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "freerdp2",
        "purl": "pkg:deb/ubuntu/freerdp2@2.2.0+dfsg1-0ubuntu0.20.04.4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.0+dfsg1-0ubuntu0.20.04.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0~git20190204.1.2693389a+dfsg1-1",
        "2.0.0~git20190204.1.2693389a+dfsg1-2",
        "2.0.0~git20190204.1.2693389a+dfsg1-2build1",
        "2.0.0~git20190204.1.2693389a+dfsg1-2build2",
        "2.1.1+dfsg1-0ubuntu0.20.04.1",
        "2.2.0+dfsg1-0ubuntu0.20.04.1",
        "2.2.0+dfsg1-0ubuntu0.20.04.2",
        "2.2.0+dfsg1-0ubuntu0.20.04.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "freerdp2-dev",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "freerdp2-shadow-x11",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "freerdp2-shadow-x11-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "freerdp2-wayland",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "freerdp2-wayland-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "freerdp2-x11",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "freerdp2-x11-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-client2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-client2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-server2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-server2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-shadow-subsystem2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-shadow-subsystem2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-shadow2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp-shadow2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libfreerdp2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libuwac0-0",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libuwac0-0-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libuwac0-dev",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libwinpr-tools2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libwinpr-tools2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libwinpr2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libwinpr2-2-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "libwinpr2-dev",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "winpr-utils",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          },
          {
            "binary_name": "winpr-utils-dbgsym",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "freerdp2",
        "purl": "pkg:deb/ubuntu/freerdp2@2.6.1+dfsg1-3ubuntu2.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.1+dfsg1-3ubuntu2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.0+dfsg1-2build1",
        "2.3.0+dfsg1-2ubuntu1",
        "2.3.0+dfsg1-2ubuntu2",
        "2.4.1+dfsg1-1",
        "2.4.1+dfsg1-1ubuntu1",
        "2.4.1+dfsg1-1ubuntu2",
        "2.5.0+dfsg1-1",
        "2.6.0+dfsg1-1",
        "2.6.1+dfsg1-1",
        "2.6.1+dfsg1-3",
        "2.6.1+dfsg1-3ubuntu1",
        "2.6.1+dfsg1-3ubuntu2",
        "2.6.1+dfsg1-3ubuntu2.1",
        "2.6.1+dfsg1-3ubuntu2.2"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2023-40187",
  "modified": "2025-07-16T05:09:36Z",
  "published": "2023-08-31T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-40187"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4f"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/h264.c#L413-L427"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-40187"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-40187"
  ],
  "withdrawn": "2025-07-18T16:54:37Z"
}



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Nomenclature

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