xrdp: xrdp is an open source remote desktop protocol server
CVE-2023-42822 is fixed in 3 products on 1 platform, first by xorgxrdp 0.9.5-2ubuntu0.1~esm2, released September 27, 2023. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| xorgxrdp · Ubuntu 18.04.6 LTS (bionic) | 0.9.5-2ubuntu0.1~esm2 | xorgxrdp 0.9.5-2ubuntu0.1~esm2 | Sep 27, 2023 |
| xrdp · Debian 12.15 (bookworm) | 0.9.21.1-1+deb12u1 | DEBIAN-CVE-2023-42822 | Sep 27, 2023 |
| xrdp · Debian 13.5 (trixie) | 0.9.24-2 | DEBIAN-CVE-2023-42822 | Sep 27, 2023 |
| xrdp · Debian 14 | 0.9.24-2 | DEBIAN-CVE-2023-42822 | Sep 27, 2023 |
| xrdp · Ubuntu 18.04.6 LTS (bionic) | 0.9.5-2ubuntu0.1~esm2 | xrdp 0.9.5-2ubuntu0.1~esm2 | Sep 27, 2023 |
| xrdp · Ubuntu 20.04 LTS (focal) | 0.9.12-1ubuntu0.1+esm1 | xrdp 0.9.12-1ubuntu0.1+esm1 | Sep 27, 2023 |
| xrdp · Ubuntu 22.04.1 LTS (jammy) | 0.9.17-2ubuntu2+esm1 | xrdp 0.9.17-2ubuntu2+esm1 | Sep 27, 2023 |
| xrdp · Ubuntu 24.04.5 LTS (noble) | 0.9.24-4ubuntu0.1~esm1 | xrdp 0.9.24-4ubuntu0.1~esm1 | Jan 27, 2026 |
| xrdp-pulseaudio-installer · Ubuntu 18.04.6 LTS (bionic) | 0.9.5-2ubuntu0.1~esm2 | xrdp-pulseaudio-installer 0.9.5-2ubuntu0.1~esm2 | Sep 27, 2023 |
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