CVE-2021-25801 Explained : Impact and Mitigation
Learn about CVE-2021-25801, a critical buffer overflow flaw in VideoLAN VLC Media Player 3.0.11 allowing attackers to trigger an out-of-bounds read via a crafted .avi file. Find mitigation steps and prevention measures.
A buffer overflow vulnerability in the Parse_indx component of VideoLAN VLC Media Player 3.0.11 allows attackers to cause an out-of-bounds read via a crafted .avi file.
Understanding CVE-2021-25801
This CVE identifies a critical buffer overflow vulnerability in the VLC Media Player software that can be exploited by malicious actors to execute arbitrary code.
What is CVE-2021-25801?
The CVE-2021-25801 vulnerability is specifically related to the Parse_indx component of VideoLAN VLC Media Player version 3.0.11. It enables attackers to trigger an out-of-bounds read through a maliciously crafted .avi file.
The Impact of CVE-2021-25801
The exploitation of CVE-2021-25801 could lead to a potential security breach, allowing threat actors to compromise systems running the vulnerable VLC Media Player software.
Technical Details of CVE-2021-25801
This section delves into the technical aspects of the CVE, including the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The buffer overflow vulnerability in the Parse_indx component of VideoLAN VLC Media Player 3.0.11 permits attackers to perform an out-of-bounds read by utilizing a specially crafted .avi file.
Affected Systems and Versions
VLC Media Player version 3.0.11 is affected by this vulnerability. Users with this specific version are at risk of exploitation and are advised to take immediate action.
Exploitation Mechanism
Malicious actors can exploit this vulnerability by enticing a user to open a malicious .avi file. Once executed, the attacker could achieve arbitrary code execution on the victim's system.
Mitigation and Prevention
To safeguard systems from potential exploitation of CVE-2021-25801, users are recommended to take immediate action and implement long-term security practices.
Immediate Steps to Take
Users should update VLC Media Player to the latest version available to eliminate the vulnerability and enhance system security.
Long-Term Security Practices
In addition to software updates, users should practice good security hygiene, such as avoiding opening files from unknown or untrusted sources.
Patching and Updates
Regularly updating software and applying security patches is crucial in mitigating the risk of exploitation from known vulnerabilities.