FreshPorts - VuXML

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

< 0.9.23.1

Ashley Newson reports:

The xrdp-sesman service can be crashed by connecting over port 3350 and supplying a malicious payload. Once the xrdp-sesman process is dead, an unprivileged attacker on the server could then proceed to start their own imposter sesman service listening on port 3350.

< 0.9.13.1,1

xrdp team reports:

In versions prior to 0.9.23 improper handling of session establishment errors allows bypassing OS-level session restrictions. The `auth_start_session` function can return non-zero (1) value on, e.g., PAM error which may result in session restrictions such as max concurrent sessions per user by PAM (ex ./etc/security/limits.conf) to be bypassed. Users (administrators) don't use restrictions by PAM are not affected. This issue has been addressed in release version 0.9.23. Users are advised to upgrade. There are no known workarounds for this issue.

< 0.9.23

xrdp project reports:

This update is recommended for all xrdp users and provides following important security fixes:

• CVE-2022-23468
• CVE-2022-23477
• CVE-2022-23478
• CVE-2022-23479
• CVE-2022-23480
• CVE-2022-23481
• CVE-2022-23483
• CVE-2022-23482
• CVE-2022-23484
• CVE-2022-23493

These security issues are reported by Team BT5 (BoB 11th). We appreciate their great help with making and reviewing patches.

< 0.9.21