CVE-2020-27945 : What You Need to Know
Learn about CVE-2020-27945, an integer overflow vulnerability in macOS that could lead to arbitrary code execution. Find out how to mitigate and prevent this security risk.
An integer overflow vulnerability in macOS has been addressed with improved input validation. This CVE affects versions of macOS prior to 11.2 and may lead to arbitrary code execution when processing maliciously crafted web content.
Understanding CVE-2020-27945
This CVE involves an integer overflow vulnerability in macOS that could potentially allow attackers to execute arbitrary code by exploiting specially crafted web content.
What is CVE-2020-27945?
CVE-2020-27945 is an integer overflow vulnerability in macOS that has been fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, and macOS Big Sur 11.0.1. The vulnerability arises from inadequate input validation.
The Impact of CVE-2020-27945
The vulnerability could be exploited by processing maliciously crafted web content, leading to arbitrary code execution on affected systems. This could potentially result in unauthorized access, data theft, or system compromise.
Technical Details of CVE-2020-27945
This section provides more technical insights into the vulnerability.
Vulnerability Description
An integer overflow issue in macOS was mitigated by enhancing input validation. The vulnerability allowed attackers to trigger arbitrary code execution through specially crafted web content.
Affected Systems and Versions
- Product: macOS
- Vendor: Apple
- Affected Versions:
- macOS versions less than 11.0
- macOS versions less than 11.2
Exploitation Mechanism
The vulnerability can be exploited by processing maliciously crafted web content, which triggers the integer overflow and allows attackers to execute arbitrary code.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Update macOS to version 11.2 or later to mitigate the vulnerability.
- Avoid visiting untrusted websites or clicking on suspicious links to minimize the risk of exposure.
Long-Term Security Practices
- Regularly update your operating system and applications to patch known vulnerabilities.
- Implement robust cybersecurity measures such as firewalls, antivirus software, and intrusion detection systems.
Patching and Updates
- Apply the necessary security updates provided by Apple to ensure that your system is protected against CVE-2020-27945.