CVE-2020-9983 : Security Advisory and Response
Learn about CVE-2020-9983, an out-of-bounds write issue in Safari fixed in version 14.0. Understand the impact, affected systems, exploitation, and mitigation steps.
An out-of-bounds write issue in Safari was addressed with improved bounds checking, fixed in Safari 14.0, potentially leading to code execution.
Understanding CVE-2020-9983
This CVE involves a security vulnerability in Safari that could allow an attacker to execute arbitrary code by exploiting a flaw in processing specially crafted web content.
What is CVE-2020-9983?
CVE-2020-9983 is an out-of-bounds write issue in Safari that was mitigated by enhancing bounds checking mechanisms. The vulnerability could be exploited through maliciously crafted web content, posing a risk of code execution.
The Impact of CVE-2020-9983
The vulnerability could be exploited by an attacker to execute arbitrary code on a target system by tricking a user into visiting a specially crafted website or opening a malicious file.
Technical Details of CVE-2020-9983
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in Safari was due to inadequate bounds checking, allowing an out-of-bounds write that could be leveraged for code execution.
Affected Systems and Versions
- Product: Safari
- Vendor: Apple
- Affected Versions: Less than Safari 14.0
Exploitation Mechanism
The vulnerability could be exploited by enticing a user to visit a malicious website or open a crafted file, triggering the out-of-bounds write and potentially leading to code execution.
Mitigation and Prevention
Protecting systems from CVE-2020-9983 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Safari to version 14.0 or newer to patch the vulnerability.
- Avoid clicking on suspicious links or downloading files from untrusted sources.
- Implement web content filtering to block potentially harmful websites.
Long-Term Security Practices
- Regularly update software and applications to ensure the latest security patches are in place.
- Educate users about safe browsing practices and the risks associated with opening unknown files.
Patching and Updates
Apply security updates provided by Apple for Safari to address the vulnerability and enhance the overall security posture of the system.