--- cve: "CVE-2023-42822" severity: "MEDIUM" cvss: 4.6 epss: "0.6%" vendor: "neutrinolabs" kev: false exploited: false published: "2023-09-27 18:15:11" tags: [cve, security, medium] source: tsecurity.de CVE-Dossier exported: "2026-09-21T04:23:02+02:00" --- # CVE-2023-42822 > 4.6 MEDIUM · 🧪 PoC ## Beschreibung xrdp is an open source remote desktop protocol server. Access to the font glyphs in xrdp_painter.c is not bounds-checked . 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. ## CVSS-Vektor ``` CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Gering | bad | | PR Privilegien | Gering | warn | | UI Interaktion | Erforderlich | good | | S Scope | Unverändert | good | | C Vertraulichkeit | Gering | warn | | I Integrität | Gering | warn | | A Verfügbarkeit | Keine | good | ## Patch verfügbar (OSV) - 1b49f82e398ebf7c0a46e2edaac5e1c8f0204aa6 (Commit) - 73acbe1f7957c65122b00de4d6f57a8d0d257c40 (Commit) ## Referenzen - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-42822) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_