CVE-2021-30708 : Security Advisory and Response
Learn about CVE-2021-30708, an out-of-bounds read vulnerability affecting iOS, iPadOS, and macOS. Understand the impact, affected systems, exploitation, and mitigation steps.
This CVE-2021-30708 article provides detailed information about an out-of-bounds read vulnerability affecting multiple Apple products such as iOS, iPadOS, and macOS. The vulnerability could allow arbitrary code execution when processing a malicious USD file.
Understanding CVE-2021-30708
CVE-2021-30708 is an out-of-bounds read vulnerability that has been fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave, iOS 14.6, and iPadOS 14.6. The issue stems from insufficient input validation, potentially leading to unexpected application termination or the execution of arbitrary code.
What is CVE-2021-30708?
An out-of-bounds read vulnerability in Apple's products, including iOS, iPadOS, and macOS, could be exploited by processing a specially crafted USD file. This could allow attackers to trigger arbitrary code execution or cause application crashes.
The Impact of CVE-2021-30708
The vulnerability poses a serious threat as attackers could exploit it to execute arbitrary code on affected devices or cause applications to crash. It is crucial to apply the necessary patches to prevent exploitation.
Technical Details of CVE-2021-30708
The vulnerability arises due to improper input validation, resulting in an out-of-bounds read condition. This can be abused by processing a malicious USD file to achieve arbitrary code execution.
Vulnerability Description
The issue allows for an out-of-bounds read when handling a specially crafted USD file, which could lead to unexpected application termination or arbitrary code execution on the affected Apple devices.
Affected Systems and Versions
Multiple Apple products are affected by CVE-2021-30708, including iOS and iPadOS versions less than 14.6, as well as macOS versions less than 11.4 and 2021.
Exploitation Mechanism
The vulnerability can be exploited by manipulating a malicious USD file, triggering the out-of-bounds read condition and potentially enabling attackers to execute arbitrary code.
Mitigation and Prevention
To protect systems from CVE-2021-30708, users should promptly apply the available security updates released by Apple to address the vulnerability.
Immediate Steps to Take
Users should update their iOS, iPadOS, and macOS devices to the latest versions, such as iOS 14.6, iPadOS 14.6, macOS Big Sur 11.4, Security Update 2021-003 Catalina, and Security Update 2021-004 Mojave to mitigate the risk.
Long-Term Security Practices
Implementing security best practices, such as maintaining up-to-date software and exercising caution when handling untrusted files, can help prevent similar vulnerabilities from being exploited.
Patching and Updates
Apple has released patches to address CVE-2021-30708. It is essential for users to regularly check for updates and apply them promptly to ensure the security of their devices.