{"id":"CVE-2023-42822","summary":"Unchecked access to font glyph info in xrdp","details":"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.","aliases":["GHSA-2hjx-rm4f-r9hw"],"modified":"2026-04-16T04:36:32.713740917Z","published":"2023-09-27T17:55:02.416Z","related":["SUSE-SU-2023:4577-1","SUSE-SU-2023:4873-1","openSUSE-SU-2024:13399-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42822.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-125"]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00018.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5FPGA4M7IYCP7OILDF2ZJEVSXUOFEFQ6/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFGL22QQF65OIZRMCKUZCVJQCKGUBRYE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTXODUR4ILM7ZPA6ZGY6VSK4BBSBMKGY/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42822.json"},{"type":"ADVISORY","url":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-2hjx-rm4f-r9hw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-42822"},{"type":"FIX","url":"https://github.com/neutrinolabs/xrdp/commit/73acbe1f7957c65122b00de4d6f57a8d0d257c40"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/neutrinolabs/xrdp","events":[{"introduced":"0"},{"fixed":"1b49f82e398ebf7c0a46e2edaac5e1c8f0204aa6"}]}],"versions":["v0.9.13.1","v0.9.18.1","v0.9.19","v0.9.2","v0.9.20","v0.9.21","v0.9.21.1","v0.9.22.1","v0.9.23","v0.9.3.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42822.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"}]}