CVE-2022-43243 : Security Advisory and Response

A detailed overview of the heap-buffer-overflow vulnerability in Libde265 v1.0.8 that could lead to a Denial of Service (DoS) attack via a crafted video file.

Understanding CVE-2022-43243

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2022-43243?

The vulnerability in Libde265 v1.0.8 allows attackers to trigger a heap-buffer-overflow through a specific function, resulting in a DoS condition when processing a manipulated video file.

The Impact of CVE-2022-43243

The vulnerability poses a risk of DoS attacks, potentially disrupting the availability of systems or services relying on Libde265 codec functionality.

Technical Details of CVE-2022-43243

Explore the technical aspects related to the CVE-2022-43243 vulnerability.

Vulnerability Description

The heap-buffer-overflow flaw occurs in the ff_hevc_put_weighted_pred_avg_8_sse function within sse-motion.cc, allowing threat actors to destabilize the software by exploiting this weakness.

Affected Systems and Versions

The vulnerability affects Libde265 v1.0.8, possibly impacting systems utilizing this specific version of the library.

Exploitation Mechanism

Attackers can exploit this vulnerability by enticing a user to process a malicious video file, triggering the heap-buffer-overflow and initiating a DoS scenario.

Mitigation and Prevention

Learn about the measures to mitigate the risks associated with CVE-2022-43243.

Immediate Steps to Take

To address the vulnerability, users should refrain from processing untrusted video files and consider implementing additional security controls.

Long-Term Security Practices

Regular security updates, threat monitoring, and secure coding practices can help in bolstering defenses against potential exploits targeting the vulnerability.

Patching and Updates

Users are advised to apply relevant security patches provided by the software vendor to remediate the heap-buffer-overflow vulnerability in Libde265 v1.0.8.