CVE-2021-30860 : What You Need to Know
Learn about CVE-2021-30860, an integer overflow vulnerability in Apple macOS, iOS, iPadOS, and watchOS. Get insights into the impact, affected systems, and mitigation steps.
An integer overflow vulnerability addressed with improved input validation in Apple's products like macOS, iOS, iPadOS, and watchOS. The issue allows processing a maliciously crafted PDF, potentially leading to arbitrary code execution.
Understanding CVE-2021-30860
This CVE-2021-30860 relates to an integer overflow vulnerability that affects multiple Apple products, potentially allowing an attacker to execute arbitrary code.
What is CVE-2021-30860?
CVE-2021-30860 is an integer overflow vulnerability in Apple products, including macOS, iOS, iPadOS, and watchOS. The flaw can be exploited through the processing of a specially crafted PDF file.
The Impact of CVE-2021-30860
The impact of CVE-2021-30860 can be severe, as it allows attackers to execute arbitrary code on the affected systems. Apple has acknowledged reports of active exploitation of this vulnerability.
Technical Details of CVE-2021-30860
This section provides detailed technical information about the CVE-2021-30860 vulnerability.
Vulnerability Description
An integer overflow vulnerability in Apple products, fixed through enhanced input validation mechanisms. Attackers can exploit this flaw by tricking users into opening a malicious PDF file.
Affected Systems and Versions
- macOS versions less than 11.6 and 2021-005
- iOS versions less than 14.8
- iPadOS version less than 14.8
- watchOS version less than 7.6
Exploitation Mechanism
The vulnerability can be exploited by processing a specially crafted PDF file, potentially resulting in the execution of arbitrary code on the target system.
Mitigation and Prevention
Protecting systems from CVE-2021-30860 involves immediate steps and long-term security practices.
Immediate Steps to Take
- Apply Security Update 2021-005 Catalina, iOS/iPadOS 14.8, macOS Big Sur 11.6, and watchOS 7.6.2 to mitigate the risk of exploitation.
Long-Term Security Practices
- Regularly update Apple software and firmware to patch known vulnerabilities and enhance system security.
Patching and Updates
- Stay informed about security updates and patches released by Apple to address CVE-2021-30860 and other potential threats.