CVE-2021-28025 : What You Need to Know
Discover the implications of CVE-2021-28025, an Integer Overflow vulnerability in Qt qtsvg versions 5.15.1, 6.0.0, 6.0.2, and 6.2, enabling DoS attacks by local threat actors.
A detailed overview of the Integer Overflow vulnerability in Qt qtsvg versions 5.15.1, 6.0.0, 6.0.2, and 6.2, which allows local attackers to cause a denial of service (DoS).
Understanding CVE-2021-28025
This section delves into the implications, impact, technical details, and mitigation strategies related to CVE-2021-28025.
What is CVE-2021-28025?
The CVE-2021-28025 vulnerability lies within qsvghandler.cpp in Qt qtsvg versions 5.15.1, 6.0.0, 6.0.2, and 6.2. It enables local attackers to trigger an Integer Overflow, leading to a Denial of Service (DoS) attack.
The Impact of CVE-2021-28025
The vulnerability's impact can result in service unavailability, system crashes, and disruptions to essential processes, posing a risk to the affected systems.
Technical Details of CVE-2021-28025
This section covers the specific aspects of the vulnerability, including its description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The Integer Overflow vulnerability in qsvghandler.cpp facilitates a DoS attack, exploiting the affected Qt qtsvg versions specified.
Affected Systems and Versions
The vulnerability affects Qt qtsvg versions 5.15.1, 6.0.0, 6.0.2, and 6.2, creating a potential entry point for local attackers to disrupt system operation.
Exploitation Mechanism
Local attackers can leverage this CVE to manipulate processes, causing an overflow in integer values and ultimately executing a DoS attack on the target system.
Mitigation and Prevention
In this section, strategies for immediate response, long-term security practices, and the significance of timely patching are discussed.
Immediate Steps to Take
Organizations are advised to implement relevant security updates, limit network exposure, and monitor for any suspicious activities to mitigate the risk.
Long-Term Security Practices
Establishing robust security protocols, conducting regular vulnerability assessments, and promoting security awareness among staff are vital for long-term resilience.
Patching and Updates
Regularly applying patches and updates provided by Qt for the affected versions is crucial in fortifying the system against potential exploits.