CVE-2021-33590 : What You Need to Know
Discover the impact and mitigation strategies for CVE-2021-33590, a vulnerability in GattLib 0.3-rc1 allowing stack-based buffer over-read attacks. Learn how to secure your systems.
This CVE-2021-33590 article provides insights into a stack-based buffer over-read vulnerability identified in GattLib 0.3-rc1 affecting the function get_device_path_from_mac in dbus/gattlib.c.
Understanding CVE-2021-33590
In this section, we will delve into the details of CVE-2021-33590.
What is CVE-2021-33590?
The CVE-2021-33590 vulnerability involves a stack-based buffer over-read in GattLib 0.3-rc1, specifically in the get_device_path_from_mac function within dbus/gattlib.c.
The Impact of CVE-2021-33590
This vulnerability could potentially lead to security breaches, unauthorized access, or denial of service attacks on systems utilizing the affected versions of GattLib.
Technical Details of CVE-2021-33590
Let's explore the technical aspects related to CVE-2021-33590.
Vulnerability Description
GattLib 0.3-rc1 is susceptible to a stack-based buffer over-read due to inadequate input validation in the get_device_path_from_mac function, which may allow attackers to read sensitive information or cause a crash.
Affected Systems and Versions
The vulnerability impacts GattLib version 0.3-rc1. Systems utilizing this version are at risk of exploitation.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious inputs to trigger the stack-based buffer over-read, potentially leading to unauthorized information disclosure or system instability.
Mitigation and Prevention
This section provides guidance on mitigating and preventing the risks associated with CVE-2021-33590.
Immediate Steps to Take
Users are advised to update GattLib to a patched version to eliminate the vulnerability. Implementing proper input validation mechanisms can also help mitigate the risk of exploitation.
Long-Term Security Practices
Regular security audits, code reviews, and training on secure coding practices can significantly enhance the overall security posture of software applications.
Patching and Updates
Stay informed about security updates and patches released by the GattLib maintainers. Promptly apply these patches to ensure your systems are protected against known vulnerabilities.