All errata/p10/ALT-PU-2023-5797-3
ALT-PU-2023-5797-3

Package update xrdp in branch p10

Version0.9.23-alt1
Task#330053
Published2026-02-04
Max severityMEDIUM
Severity:

Closed issues (2)

BDU:2023-07659
MEDIUM6.5

Уязвимость функции auth_start_session() сервера XRDP, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-11-11Modified: 2026-03-04
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:C
References
CVE-2023-40184
MEDIUM6.5

xrdp is an open source remote desktop protocol (RDP) server. 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 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.

Published: 2023-08-30Modified: 2025-11-03
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References