CVE-2020-3848
macOS vulnerability analysis and mitigation

Overview

A memory corruption vulnerability (CVE-2020-3848) was discovered in Apple's CoreBluetooth component affecting macOS Catalina 10.15.2, macOS Mojave 10.14.6, and macOS High Sierra 10.13.6. The vulnerability was discovered by Jianjun Dai of Qihoo 360 Alpha Lab and was fixed in macOS Catalina 10.15.3, released on January 28, 2020 (Apple Security).

Technical details

The vulnerability stems from a memory corruption issue in the CoreBluetooth component. The issue was addressed with improved input validation in the security update. The vulnerability affects multiple versions of macOS including Catalina 10.15.2, Mojave 10.14.6, and High Sierra 10.13.6 (Apple Security).

Impact

If exploited, this vulnerability could allow a remote attacker to cause unexpected application termination or execute arbitrary code on the affected system (Apple Security).

Mitigation and workarounds

Apple addressed this vulnerability in macOS Catalina 10.15.3, Security Update 2020-001 Mojave, and Security Update 2020-001 High Sierra. Users are advised to update their systems to the latest version to receive the security fix (Apple Security).

Additional resources


SourceThis report was generated using AI

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