Vulnerability-Lookup

ubuntu-cve-2023-40187 Withdrawn 2025-07-18

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

URL

Type

	https://ubuntu.com/security/CVE-2023-40187	REPORT
	https://github.com/FreeRDP/FreeRDP/security/advis…	REPORT
	https://github.com/FreeRDP/FreeRDP/blob/5be5553e0…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-40187	REPORT

JSON

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"
}

CVE-2023-40187 (GCVE-0-2023-40187)

Vulnerability from cvelistv5 – Published: 2023-08-31 21:21 – Updated: 2025-02-13 17:07

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.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-27 16:18 UTC

CWE

CWE-416 - Use After Free

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/blob/5be5553e0…	x_refsource_MISC
https://security.gentoo.org/glsa/202401-16

Impacted products

1 product

Vendor	Product	Version
FreeRDP	FreeRDP	Affected: >= 3.0.0-beta1, < 3.0.0-beta3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:24:55.794Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4f",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4f"
          },
          {
            "name": "https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/h264.c#L413-L427",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/h264.c#L413-L427"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202401-16"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-40187",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-27T16:18:28.873829Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-27T16:18:40.576Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeRDP",
          "vendor": "FreeRDP",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0-beta1, \u003c 3.0.0-beta3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-12T13:06:18.268Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4f",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4f"
        },
        {
          "name": "https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/h264.c#L413-L427",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/h264.c#L413-L427"
        },
        {
          "url": "https://security.gentoo.org/glsa/202401-16"
        }
      ],
      "source": {
        "advisory": "GHSA-pwf9-v5p9-ch4f",
        "discovery": "UNKNOWN"
      },
      "title": "Use-After-Free in FreeRDP"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-40187",
    "datePublished": "2023-08-31T21:21:12.787Z",
    "dateReserved": "2023-08-09T15:26:41.053Z",
    "dateUpdated": "2025-02-13T17:07:43.347Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.