CVE-2023-24754 : Exploit Details and Defense Strategies

This CVE record details a vulnerability found in libde265 v1.0.10, exposing a NULL pointer dereference in the ff_hevc_put_weighted_pred_avg_8_sse function at sse-motion.cc. The flaw can be exploited by attackers to trigger a Denial of Service (DoS) by utilizing a specifically crafted input file.

Understanding CVE-2023-24754

This section will delve into what CVE-2023-24754 is and the impact it can have on systems.

What is CVE-2023-24754?

CVE-2023-24754 refers to a vulnerability in libde265 v1.0.10, leading to a NULL pointer dereference in the ff_hevc_put_weighted_pred_avg_8_sse function at sse-motion.cc. This flaw can be abused for a DoS attack through a malicious input file.

The Impact of CVE-2023-24754

The impact of CVE-2023-24754 includes the possibility of a Denial of Service (DoS) attack, which can disrupt services and impact the availability of affected systems.

Technical Details of CVE-2023-24754

In this section, we will explore the technical aspects of CVE-2023-24754, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in libde265 v1.0.10 exposes a NULL pointer dereference in the ff_hevc_put_weighted_pred_avg_8_sse function at sse-motion.cc, which could be leveraged by attackers to launch a Denial of Service (DoS) attack.

Affected Systems and Versions

The affected vendor, product, and versions by CVE-2023-24754 are not explicitly specified, indicating potential impact across various systems utilizing libde265 v1.0.10.

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a specifically crafted input file to trigger the NULL pointer dereference in the ff_hevc_put_weighted_pred_avg_8_sse function, ultimately leading to a Denial of Service (DoS) condition.

Mitigation and Prevention

This section focuses on the measures to mitigate the risks posed by CVE-2023-24754 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update libde265 to a patched version that addresses the vulnerability.
Employ network security measures to mitigate the risk of unauthorized access and exploitation.

Long-Term Security Practices

Regularly monitor security advisories and patch releases for libde265 to promptly address any future vulnerabilities.
Conduct security assessments and audits to proactively identify and address security weaknesses in software components.

Patching and Updates

It is crucial to apply the security update provided by libde265 promptly. Regularly updating software components helps in safeguarding systems against known vulnerabilities and enhancing overall security posture.