Vulnerability-Lookup

CVE-2023-39353 (GCVE-0-2023-39353)

Vulnerability from cvelistv5 – Published: 2023-08-31 20:04 – Updated: 2025-11-03 20:35

Title

Missing offset validation leading to Out Of Bound Read in FreeRDP

Summary

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity

5.3 (Medium)


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

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M mitre root

References

8 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/blob/63a2f6561…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.debian.org/debian-lts-announce/2023…
https://security.gentoo.org/glsa/202401-16
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version	CPE status
FreeRDP	FreeRDP	Affected: < 2.11.0 Affected: >= 3.0.0-beta1, < 3.0.0-beta3	guessed

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List\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV/\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://security.gentoo.org/glsa/202401-16\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/codec/rfx.c#L994-L996\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hg53-9j9h-3c8f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/02/msg00016.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6LLDAPEXRDJOM3PREDDD267SSNT77DP/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHMTGKCZXJPQOR5ZD2I4GPDNP2DKRXMF/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]},{\"url\":\"https://security.gentoo.org/glsa/202401-16\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T10:23:54+00:00",
      "cve": "CVE-2023-39353",
      "id": "CVE-2023-39353",
      "initial_release_date": "2023-08-31T00:00:00+00:00",
      "product_status:fixed": "90",
      "product_status:known_affected": "18",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "freerdp: missing offset validation leading to Out Of Bound Read",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-39353.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-26T01:53:26Z",
      "cve": "CVE-2023-39353",
      "id": "CVE-2023-39353",
      "initial_release_date": "2023-09-02T01:54:42Z",
      "product_status:recommended": "169",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-39353",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-39353.json",
      "version": "23"
    }
  }
}

ubuntu-cve-2023-39353

Vulnerability from osv_ubuntu

Published

2023-08-31 21:15

Modified

2026-04-22 07:45

Summary

Details

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the libfreerdp/codec/rfx.c file there is no offset validation in tile->quantIdxY, tile->quantIdxCb, and tile->quantIdxCr. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity

9.1 (Critical)


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

5.3 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-39353	REPORT
	https://github.com/FreeRDP/FreeRDP/security/advis…	REPORT
	https://github.com/FreeRDP/FreeRDP/blob/63a2f6561…	REPORT
	https://ubuntu.com/security/notices/USN-6401-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2023-39353	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "freerdp2-shadow-x11",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "freerdp2-wayland",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "freerdp2-x11",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libfreerdp-client2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libfreerdp-server2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libfreerdp-shadow-subsystem2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libfreerdp-shadow2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libfreerdp2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libuwac0-0",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libwinpr-tools2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "libwinpr2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          },
          {
            "binary_name": "winpr-utils",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "freerdp2",
        "purl": "pkg:deb/ubuntu/freerdp2@2.2.0+dfsg1-0ubuntu0.18.04.4+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.0+dfsg1-0ubuntu0.18.04.4+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0~git20170725.1.1648deb+dfsg1-1",
        "2.0.0~git20170725.1.1648deb+dfsg1-5",
        "2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu1",
        "2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu2",
        "2.0.0~git20170725.1.1648deb+dfsg1-6",
        "2.0.0~git20170725.1.1648deb+dfsg1-6build1",
        "2.0.0~git20170725.1.1648deb+dfsg1-7",
        "2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1",
        "2.1.1+dfsg1-0ubuntu0.18.04.1",
        "2.2.0+dfsg1-0ubuntu0.18.04.1",
        "2.2.0+dfsg1-0ubuntu0.18.04.2",
        "2.2.0+dfsg1-0ubuntu0.18.04.3",
        "2.2.0+dfsg1-0ubuntu0.18.04.4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "freerdp2-shadow-x11",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "freerdp2-wayland",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "freerdp2-x11",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libfreerdp-client2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libfreerdp-server2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libfreerdp-shadow-subsystem2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libfreerdp-shadow2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libfreerdp2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libuwac0-0",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libwinpr-tools2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "libwinpr2-2",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          },
          {
            "binary_name": "winpr-utils",
            "binary_version": "2.2.0+dfsg1-0ubuntu0.20.04.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "freerdp2",
        "purl": "pkg:deb/ubuntu/freerdp2@2.2.0+dfsg1-0ubuntu0.20.04.5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.0+dfsg1-0ubuntu0.20.04.5"
            }
          ],
          "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",
        "2.2.0+dfsg1-0ubuntu0.20.04.4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "freerdp2-shadow-x11",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "freerdp2-wayland",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "freerdp2-x11",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libfreerdp-client2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libfreerdp-server2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libfreerdp-shadow-subsystem2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libfreerdp-shadow2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libfreerdp2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libuwac0-0",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libwinpr-tools2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "libwinpr2-2",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          },
          {
            "binary_name": "winpr-utils",
            "binary_version": "2.6.1+dfsg1-3ubuntu2.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "freerdp2",
        "purl": "pkg:deb/ubuntu/freerdp2@2.6.1+dfsg1-3ubuntu2.4?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.1+dfsg1-3ubuntu2.4"
            }
          ],
          "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",
        "2.6.1+dfsg1-3ubuntu2.3"
      ]
    }
  ],
  "aliases": [],
  "details": "FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile-\u003equantIdxY`, `tile-\u003equantIdxCb`, and `tile-\u003equantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
  "id": "UBUNTU-CVE-2023-39353",
  "modified": "2026-04-22T07:45:26Z",
  "published": "2023-08-31T21:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-39353"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hg53-9j9h-3c8f"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/codec/rfx.c#L994-L996"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6401-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-39353"
    }
  ],
  "related": [
    "USN-6401-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-39353"
  ]
}

WID-SEC-W-2023-2251

Vulnerability from csaf_certbund - Published: 2023-09-03 22:00 - Updated: 2026-03-11 23:00

Summary

FreeRDP: Mehrere Schwachstellen

Severity

Mittel

Scope

17 vulnerabilities in this advisory, including CVE-2023-39353.

CVE-2023-39353

Known affected: 9 products

Open the full advisory

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.

Action not permitted

CVE-2023-39353 (GCVE-0-2023-39353)

ubuntu-cve-2023-39353

Vulnerability from osv_ubuntu

WID-SEC-W-2023-2251

Tags

Sightings

Nomenclature

Related by attack behaviour