FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

xrdp -- unchecked access to font glyph info

Affected packages
xrdp <


VuXML ID af065e47-5d62-11ee-bbae-1c61b4739ac9
Discovery 2023-09-27
Entry 2023-09-27

xrdp team reports:

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 Users are advised to upgrade. There are no known workarounds for this vulnerability.


CVE Name CVE-2023-42822