Neutrinolabs xrdp up to 0.9.20 xrdp_mm_trans_process_drdynvc_channel_close out-of-bounds

Summaryinfo

A vulnerability, which was classified as problematic, was found in Neutrinolabs xrdp up to 0.9.20. This impacts the function xrdp_mm_trans_process_drdynvc_channel_close. Executing a manipulation can lead to out-of-bounds. The identification of this vulnerability is CVE-2022-23493. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Neutrinolabs xrdp up to 0.9.20. It has been declared as critical. This vulnerability affects the function xrdp_mm_trans_process_drdynvc_channel_close. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a Out of Bound Read in xrdp_mm_trans_process_drdynvc_channel_close() function. There are no known workarounds for this issue. Users are advised to upgrade.

The weakness was shared 12/10/2022 as GHSA-59wp-3wq6-jh5v. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-23493 since 01/19/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 211003 (Fedora 37 : xrdp (2022-6fe4046ae9)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.9.21 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211003). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Neutrinolabs

Name

• xrdp

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8
• 0.9.9
• 0.9.10
• 0.9.11
• 0.9.12
• 0.9.13
• 0.9.14
• 0.9.15
• 0.9.16
• 0.9.17
• 0.9.18
• 0.9.19
• 0.9.20

Website

• Product: https://github.com/neutrinolabs/xrdp/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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