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Test ID:1.3.6.1.4.1.25623.1.0.884791
Category:Fedora Local Security Checks
Title:Fedora: Security Advisory (FEDORA-2023-5134642a68)
Summary:The remote host is missing an update for the 'xrdp' package(s) announced via the FEDORA-2023-5134642a68 advisory.
Description:Summary:
The remote host is missing an update for the 'xrdp' package(s) announced via the FEDORA-2023-5134642a68 advisory.

Vulnerability Insight:
Release notes for xrdp v0.9.23 (2023/08/31)

General announcements

- Running xrdp and xrdp-sesman on separate hosts is still supported by this release, but is now deprecated. This is not secure. A future v1.0 release will replace the TCP socket used between these processes with a Unix Domain Socket, and then cross-host running will not be possible.

Security fixes

- CVE-2023-40184: Improper handling of session establishment errors allows bypassing OS-level session restrictions (Reported by @gafusss)

Bug fixes

- Environment variables set by PAM modules are no longer restricted to around 250 characters (#2712)
- X11 clipboard clients now no longer hang when requesting a clipboard format which isn't available (#2767)

New features

No new features in this release.
Internal changes

- Introduce release tarball generation script (#2703)
- cppcheck version used for CI bumped to 2.11 (#2738)

Known issues

- On-the-fly resolution change requires the Microsoft Store version of Remote Desktop client but sometimes crashes on connect (#1869)
- xrdp's login dialog is not relocated at the center of the new resolution after on-the-fly resolution change happens (#1867)

Affected Software/OS:
'xrdp' package(s) on Fedora 39.

Solution:
Please install the updated package(s).

CVSS Score:
6.8

CVSS Vector:
AV:N/AC:L/Au:S/C:N/I:N/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2023-40184
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SOT237TIHTHPX5YNIWLVNINOEYC7WMG2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/URO3FKTFBPNKFARAQBEJLI4MH6YS35P5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5IXMQODV3OIJ7DRQBUQV7PUKNT7SH36/
https://github.com/neutrinolabs/xrdp/blame/9bbb2ec68f390504c32f2062847aa3d821a0089a/sesman/sesexec/session.c#L571C5-L571C19
https://github.com/neutrinolabs/xrdp/commit/a111a0fdfe2421ef600e40708b5f0168594cfb23
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-f489-557v-47jq
CopyrightCopyright (C) 2023 Greenbone AG

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