A vulnerability, which was classified as problematic, was found in OpenRazer up to 3.5.0. This affects the function razer_attr_read_dpi_stages of the component USB Device Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OpenRazer is an open source driver and user-space daemon to control Razer device lighting and other features on GNU/Linux. Using a modified USB device an attacker can leak stack addresses of the `razer_attr_read_dpi_stages`, potentially bypassing KASLR. To exploit this vulnerability an attacker would need to access to a users keyboard or mouse or would need to convince a user to use a modified device. The issue has been patched in v3.5.1. Users are advised to upgrade and should be reminded not to plug in unknown USB devices.

The weakness was published 12/06/2022 as GHSA-39hg-jvc9-fg7h. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2022-23467 since 01/19/2022. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.5.1 eliminates this vulnerability. Applying the patch 33aa7f07d54ae066f201c6d298cb4a2181cb90e6 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Similar entries are available at VDB-185897, VDB-185898, VDB-186792 and VDB-192477.

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• OpenRazer

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5

License

• open-source

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