CVE-2023-42940: Infoleak

Q: What is the severity of CVE-2023-42940?

CVE-2023-42940 has been classified as a moderate severity vulnerability due to its potential impact on screen sharing.

Q: How do I fix CVE-2023-42940?

To fix CVE-2023-42940, update your system to macOS Sonoma version 14.2.1 or later.

Q: What does CVE-2023-42940 affect?

CVE-2023-42940 affects the Apple macOS operating system, specifically versions prior to 14.2.1.

Q: What type of vulnerability is CVE-2023-42940?

CVE-2023-42940 is a session rendering issue that can lead to sharing incorrect content during screen sharing.

Q: When was CVE-2023-42940 addressed?

CVE-2023-42940 was addressed in macOS Sonoma version 14.2.1.

Published Dec 19, 2023

Updated

A session rendering issue was addressed with improved session tracking. This issue is fixed in macOS Sonoma 14.2.1. A user who shares their screen may unintentionally share the incorrect content.

Other sources

WindowServer. A session rendering issue was addressed with improved session tracking.

— Apple

Credit

Craig Hockenberry

Affected Software

2 affected componentsFixes available

Apple macOS<14.2.1

14.2.1

macOS>=14.0<14.2.1

Event History

Dec 19, 2023

CVE Published

via MITRE·09:13 PM

Data Sourced

via MITRE·09:13 PM

DescriptionWeakness

Data Sourced

via NVD·10:15 PM

DescriptionSeverityWeaknessAffected Software

Dec 23, 2023

News Published

12:47 PM

Parent advisories

This vulnerability appears in the following advisories.

HT214048

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What is the severity of CVE-2023-42940?