CVE-2021-35267 : Vulnerability Insights and Analysis
Learn about CVE-2021-35267, a stack buffer overflow vulnerability in NTFS-3G versions < 2021.8.22 allowing code execution or privilege escalation. Find mitigation steps and preventive measures here.
A stack buffer overflow vulnerability has been identified in NTFS-3G versions prior to 2021.8.22. This vulnerability can lead to code execution or privilege escalation when setuid-root.
Understanding CVE-2021-35267
This vulnerability allows an attacker to trigger a stack buffer overflow in NTFS-3G, potentially resulting in the execution of malicious code or elevation of privileges.
What is CVE-2021-35267?
CVE-2021-35267 is a stack buffer overflow flaw in NTFS-3G versions before 2021.8.22 that can be exploited by an attacker to execute arbitrary code or escalate privileges.
The Impact of CVE-2021-35267
The exploitation of this vulnerability could lead to a compromise of the affected system, allowing attackers to gain unauthorized access, execute malicious activities, or perform privilege escalation.
Technical Details of CVE-2021-35267
This section provides a closer look at the specifics of the CVE-2021-35267 vulnerability.
Vulnerability Description
The vulnerability arises from a stack buffer overflow issue in NTFS-3G versions prior to 2021.8.22, which can be abused to achieve code execution or privilege escalation.
Affected Systems and Versions
All versions of NTFS-3G below 2021.8.22 are affected by this vulnerability, potentially impacting a wide range of systems.
Exploitation Mechanism
Exploiting this vulnerability involves triggering the stack buffer overflow in the MFT and MFTMirror, providing an opportunity for malicious actors to execute code or escalate privileges.
Mitigation and Prevention
Protecting systems from CVE-2021-35267 requires immediate actions as well as long-term security practices.
Immediate Steps to Take
Users are advised to update NTFS-3G to version 2021.8.22 or later to mitigate the stack buffer overflow vulnerability. Restricting access and permissions for critical files and directories can also help reduce the risk of exploitation.
Long-Term Security Practices
Regularly updating software, implementing access controls, and monitoring for unusual activities are essential for maintaining a secure environment and preventing potential vulnerabilities.
Patching and Updates
Stay informed about security advisories and patches related to NTFS-3G to ensure timely application of fixes and enhancements.