CVE-2023-42822

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Since some of this data is controllable by the user, this can result in an out-of-bounds read within the xrdp executable. The vulnerability allows an out-of-bounds read within a potentially privileged process. On non-Debian platforms, xrdp tends to run as root. Potentially an out-of-bounds write can follow the out-of-bounds read. There is no denial-of-service impact, providing xrdp is running in forking mode. This issue has been addressed in release 0.9.23.1. Users are advised to upgrade. There are no known workarounds for this vulnerability."}, {"lang": "es", "value": "xrdp es un servidor de protocolo de escritorio remoto de c\u00f3digo abierto. El acceso a los font glyphs en xrdp_painter.c no est\u00e1 controlado por los l\u00edmites. Dado que algunos de estos datos son controlables por el usuario, esto puede resultar en una lectura fuera de los l\u00edmites dentro del ejecutable xrdp. La vulnerabilidad permite una lectura fuera de los l\u00edmites dentro de un proceso potencialmente privilegiado. En plataformas que no son Debian, xrdp tiende a ejecutarse como root. Potencialmente, una escritura fuera de los l\u00edmites puede seguir a la lectura fuera de los l\u00edmites. No hay ning\u00fan impacto de denegaci\u00f3n de servicio, siempre que xrdp se ejecute en modo fork. Este problema se solucion\u00f3 en la versi\u00f3n 0.9.23.1. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."}], "id": "CVE-2023-42822", "lastModified": "2026-06-17T06:24:35.717", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-42822", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-23T14:30:39.121571Z", "version": "2.0.3"}}]}, "published": "2023-09-27T18:15:11.903", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/neutrinolabs/xrdp/commit/73acbe1f7957c65122b00de4d6f57a8d0d257c40"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-2hjx-rm4f-r9hw"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5FPGA4M7IYCP7OILDF2ZJEVSXUOFEFQ6/"}, {"source": "security-advisories@github.com", "tags": ["Mailing List", "Release Notes"], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFGL22QQF65OIZRMCKUZCVJQCKGUBRYE/"}, {"source": "security-advisories@github.com", "tags": ["Mailing List", "Release Notes"], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTXODUR4ILM7ZPA6ZGY6VSK4BBSBMKGY/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/neutrinolabs/xrdp/commit/73acbe1f7957c65122b00de4d6f57a8d0d257c40"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-2hjx-rm4f-r9hw"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00018.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5FPGA4M7IYCP7OILDF2ZJEVSXUOFEFQ6/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Release Notes"], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFGL22QQF65OIZRMCKUZCVJQCKGUBRYE/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Release Notes"], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTXODUR4ILM7ZPA6ZGY6VSK4BBSBMKGY/"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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