Neutrinolabs xrdp up to 0.9.20 audin_send_open buffer overflow

Summaryinfo

A vulnerability categorized as critical has been discovered in Neutrinolabs xrdp up to 0.9.20. Affected by this issue is the function audin_send_open. Such manipulation leads to buffer overflow. This vulnerability is documented as CVE-2022-23477. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Neutrinolabs xrdp up to 0.9.20. It has been rated as critical. Affected by this issue is the function audin_send_open. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is 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 buffer over flow in audin_send_open() function. There are no known workarounds for this issue. Users are advised to upgrade.

The weakness was released 12/10/2022 as GHSA-hqw2-jx2c-wrr2. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-23477 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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