CVE-2020-9813: 
macOS vulnerability analysis and mitigation

CVE-2020-9813 is a kernel vulnerability discovered in Apple's operating systems that was disclosed and patched in May 2020. The vulnerability was identified as a logic issue that resulted in memory corruption in the kernel component. This security flaw affected multiple Apple platforms including iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, and watchOS 6.2.5 (Apple iOS, Apple macOS).

The vulnerability is characterized as a logic issue that leads to memory corruption in the kernel. It received a CVSS v3.1 base score of 7.8 (High), with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified as CWE-787 (Out-of-bounds Write) and requires user interaction for exploitation (NVD).

If successfully exploited, this vulnerability could allow a malicious application to execute arbitrary code with kernel privileges. This means an attacker could potentially gain complete control over the affected device, access sensitive information, and perform privileged actions (Apple iOS, Apple macOS).

The vulnerability requires local access and user interaction to be exploited. A malicious application would need to be executed on the target system to take advantage of this vulnerability. The issue was discovered by Xinru Chi of Pangu Lab (NVD).

Apple addressed this vulnerability by improving state management in the kernel component. The fix was released in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, and watchOS 6.2.5. Users are advised to update their devices to these versions or later to protect against this vulnerability (Apple iOS, Apple macOS).