CVE-2023-24755 : What You Need to Know

In this article, we will explore CVE-2023-24755, a vulnerability found in libde265 v1.0.10 that can lead to a Denial of Service (DoS) attack. The vulnerability involves a NULL pointer dereference in the put_weighted_pred_8_fallback function at fallback-motion.cc. Attackers can exploit this flaw by using a crafted input file.

Understanding CVE-2023-24755

This section delves into the details of CVE-2023-24755, emphasizing its impact, technical aspects, and mitigation strategies.

What is CVE-2023-24755?

CVE-2023-24755 is a security vulnerability discovered in libde265 v1.0.10. The flaw arises due to a NULL pointer dereference in the put_weighted_pred_8_fallback function at fallback-motion.cc, enabling attackers to trigger a DoS attack through a specially crafted input file.

The Impact of CVE-2023-24755

The vulnerability poses a significant risk as attackers can exploit it to cause a Denial of Service (DoS) condition on systems running the affected version of libde265, potentially disrupting services and operations.

Technical Details of CVE-2023-24755

This section provides a deeper insight into the technical aspects of the CVE-2023-24755 vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in libde265 v1.0.10 arises from a NULL pointer dereference in the put_weighted_pred_8_fallback function at fallback-motion.cc. This flaw allows malicious actors to launch a DoS attack by exploiting a specially crafted input file.

Affected Systems and Versions

As per the CVE record, the affected vendor and product details are marked as 'n/a', highlighting that the vulnerability impacts all versions of libde265 v1.0.10.

Exploitation Mechanism

Attackers can exploit CVE-2023-24755 by leveraging the NULL pointer dereference in the put_weighted_pred_8_fallback function at fallback-motion.cc. By providing a crafted input file, they can trigger the vulnerability and subsequently initiate a Denial of Service (DoS) attack.

Mitigation and Prevention

In this segment, we look at the steps that organizations and individuals can take to mitigate the risks associated with CVE-2023-24755 and prevent exploitation.

Immediate Steps to Take

Users are advised to update their libde265 installations to the latest version to mitigate the vulnerability.
Exercise caution while processing untrusted input files to reduce the risk of exploitation.

Long-Term Security Practices

Implement secure coding practices to avoid NULL pointer dereference vulnerabilities in software development.
Regularly monitor security advisories and apply patches promptly to address known vulnerabilities.

Patching and Updates

Stay informed about security updates released by libde265 and promptly apply patches to secure systems against potential threats.

By understanding the details of CVE-2023-24755 and implementing necessary measures, users can enhance the security posture of their systems and safeguard against potential exploitation.