CVE-2020-27923 : Security Advisory and Response
Learn about CVE-2020-27923, an out-of-bounds write vulnerability in Apple products that could allow arbitrary code execution. Find out affected systems, exploitation details, and mitigation steps.
An out-of-bounds write vulnerability in Apple products was addressed with improved input validation. This CVE affects various Apple operating systems and versions.
Understanding CVE-2020-27923
This CVE involves a security vulnerability that could allow an attacker to execute arbitrary code by processing a specially crafted image.
What is CVE-2020-27923?
CVE-2020-27923 is an out-of-bounds write vulnerability that was fixed by Apple through improved input validation. The vulnerability could be exploited by processing a maliciously crafted image, potentially leading to arbitrary code execution.
The Impact of CVE-2020-27923
The exploitation of this vulnerability could result in an attacker executing arbitrary code on the affected systems, potentially leading to unauthorized access, data theft, or system compromise.
Technical Details of CVE-2020-27923
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability involves an out-of-bounds write issue that could be triggered by processing a specially crafted image.
Affected Systems and Versions
The following Apple products and versions are affected:
- watchOS: Less than version 7.1
- iOS and iPadOS: Less than version 14.2
- tvOS: Less than version 14.2
- macOS: Less than versions 11.0 and 11.1
Exploitation Mechanism
The vulnerability can be exploited by processing a maliciously crafted image, allowing an attacker to execute arbitrary code on the affected systems.
Mitigation and Prevention
To address CVE-2020-27923, users and organizations should take the following steps:
Immediate Steps to Take
- Apply the necessary security updates provided by Apple for the affected products and versions.
- Avoid opening or processing untrusted or suspicious image files.
Long-Term Security Practices
- Regularly update all software and operating systems to the latest versions to patch known vulnerabilities.
- Implement security best practices, such as using firewalls, antivirus software, and intrusion detection systems.
Patching and Updates
Apple has released fixes for CVE-2020-27923 in the following updates:
- macOS Big Sur 11.1
- Security Update 2020-001 Catalina
- Security Update 2020-007 Mojave
- macOS Big Sur 11.0.1
- iOS 14.2 and iPadOS 14.2
- watchOS 7.1
- tvOS 14.2