CVE-2023-24757 : Vulnerability Insights and Analysis

This CVE-2023-24757 was published on March 1, 2023, after being reserved on January 30, 2023, by MITRE. It affects libde265 version 1.0.10 and involves a NULL pointer dereference vulnerability in the put_unweighted_pred_16_fallback function at fallback-motion.cc. The exploit of this vulnerability can lead to a Denial of Service (DoS) through a specially crafted input file.

Understanding CVE-2023-24757

The CVE-2023-24757 vulnerability affects the libde265 library version 1.0.10, potentially allowing attackers to cause a Denial of Service (DoS) by exploiting a NULL pointer dereference issue.

What is CVE-2023-24757?

CVE-2023-24757 is a vulnerability in the libde265 library version 1.0.10, presenting a risk for Denial of Service attacks due to a NULL pointer dereference in the put_unweighted_pred_16_fallback function at fallback-motion.cc.

The Impact of CVE-2023-24757

The impact of CVE-2023-24757 is significant as it can be exploited by attackers to cause a Denial of Service (DoS) by utilizing a specifically crafted input file, potentially disrupting the availability of affected systems.

Technical Details of CVE-2023-24757

This section covers detailed technical information regarding the CVE-2023-24757 vulnerability.

Vulnerability Description

The vulnerability in libde265 v1.0.10 arises from a NULL pointer dereference in the put_unweighted_pred_16_fallback function at fallback-motion.cc. This flaw can be exploited to trigger a Denial of Service (DoS) attack through malicious input manipulation.

Affected Systems and Versions

The affected system by CVE-2023-24757 is the libde265 library version 1.0.10. This vulnerability impacts systems utilizing this version of the library, potentially exposing them to DoS attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the NULL pointer dereference issue in the put_unweighted_pred_16_fallback function at fallback-motion.cc. By crafting a specific input file, they can trigger the vulnerability and initiate a Denial of Service attack.

Mitigation and Prevention

To address and mitigate the CVE-2023-24757 vulnerability, specific steps need to be taken by users and system administrators.

Immediate Steps to Take

Immediate actions should include updating the libde265 library to a patched version or applying security updates provided by the vendor. It is crucial to restrict access to vulnerable systems and monitor for any suspicious activity.

Long-Term Security Practices

Implementing strong security measures such as regular software updates, conducting security audits, and maintaining proper access control mechanisms can enhance long-term defenses against potential vulnerabilities like CVE-2023-24757.

Patching and Updates

Users are advised to apply security patches and updates released by libde265 promptly. Regularly checking for security advisories from trusted sources can help in staying informed about potential vulnerabilities and their mitigations.