CVE-2019-8798 in macOS
Summary
by MITRE
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, macOS Catalina 10.15.1, tvOS 13.2, watchOS 6.1. An application may be able to execute arbitrary code with system privileges.
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Analysis
by VulDB Data Team • 01/31/2024
The vulnerability identified as CVE-2019-8798 represents a critical memory corruption flaw that affected multiple Apple operating systems including iOS 13.2, iPadOS 13.2, macOS Catalina 10.15.1, tvOS 13.2, and watchOS 6.1. This issue falls under the broader category of memory safety vulnerabilities that can lead to severe security implications when exploited by malicious actors. The flaw was specifically addressed through enhanced memory handling mechanisms implemented by Apple in their respective software updates.
The technical nature of this vulnerability stems from inadequate memory management practices that could result in improper memory allocation or deallocation operations. When an application encounters such memory corruption issues, it may lead to unpredictable behavior that could be leveraged by threat actors to execute arbitrary code with elevated system privileges. This type of vulnerability typically arises from buffer overflows, use-after-free conditions, or other memory handling anomalies that allow attackers to manipulate program execution flow.
The operational impact of CVE-2019-8798 extends beyond simple system instability, as it provides attackers with the capability to gain system-level privileges through seemingly benign applications. This represents a significant escalation in attack surface since a malicious application could potentially exploit this vulnerability to bypass security restrictions and perform actions that would normally require administrator access. The implications are particularly concerning given that the flaw affects multiple device types including mobile devices, desktop systems, and media devices, creating a broad attack vector.
Security professionals should note that this vulnerability aligns with common attack patterns documented in the ATT&CK framework under privilege escalation techniques, where adversaries leverage software vulnerabilities to gain elevated access. The CWE (Common Weakness Enumeration) classification for such memory corruption issues typically falls under weakness categories related to memory safety and improper handling of resources. Organizations and users must prioritize immediate patching of affected systems to prevent exploitation attempts that could lead to complete system compromise and data breaches.
Apple's response to this vulnerability demonstrates the company's commitment to maintaining secure operating environments through regular security updates and patches. The remediation approach focused on strengthening memory handling mechanisms rather than implementing complex workarounds, which aligns with industry best practices for addressing fundamental software security flaws. System administrators should implement comprehensive patch management strategies to ensure all affected devices receive the necessary updates, particularly in enterprise environments where multiple device types may be in use simultaneously.