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Vulnerability DatabaseCVE-2023-42940

CVE-2023-42940: 
macOS vulnerability analysis and mitigation

Overview

CVE-2023-42940 is a session rendering vulnerability in macOS Sonoma's WindowServer component, discovered by Craig Hockenberry and disclosed on December 19, 2023. The vulnerability affects macOS Sonoma versions from 14.0 up to (excluding) 14.2.1. This security issue involves a session rendering problem that could potentially expose unintended content during screen sharing sessions (Apple Support).

Technical details

The vulnerability stems from a session rendering issue in the WindowServer component of macOS Sonoma. The issue relates to improper session tracking mechanisms that could lead to incorrect content being displayed during screen sharing. The vulnerability has been assigned a CVSS v3.1 base score of 5.7 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N (NVD).

Impact

When exploited, this vulnerability could result in users unintentionally sharing incorrect content during screen sharing sessions, potentially exposing sensitive information to unauthorized viewers (Apple Support).

Mitigation and workarounds

Apple has addressed this vulnerability by improving session tracking mechanisms in macOS Sonoma 14.2.1. Users are advised to update to macOS Sonoma 14.2.1 or later versions to mitigate this security issue (Apple Support).

Additional resources

Source: This report was generated using AI

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