CVE-2023-49467 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-49467, a heap-buffer-overflow vulnerability discovered in Libde265 v1.0.14.

Understanding CVE-2023-49467

CVE-2023-49467 refers to a vulnerability found in the derive_combined_bipredictive_merging_candidates function at motion.cc in Libde265 v1.0.14.

What is CVE-2023-49467?

CVE-2023-49467 is a heap-buffer-overflow vulnerability present in the mentioned function in Libde265 v1.0.14, which could allow an attacker to execute arbitrary code or cause a denial of service.

The Impact of CVE-2023-49467

If exploited, CVE-2023-49467 could lead to a potential compromise of the affected system, unauthorized access, or system crashes, posing a significant security risk.

Technical Details of CVE-2023-49467

This section delves into specific technical aspects of the CVE.

Vulnerability Description

The vulnerability exists due to improper handling of memory operations in the derive_combined_bipredictive_merging_candidates function, potentially leading to a heap-buffer-overflow situation.

Affected Systems and Versions

All versions of Libde265 v1.0.14 are affected by this vulnerability, regardless of the operating system.

Exploitation Mechanism

An attacker could exploit this vulnerability by crafting a malicious input and sending it to the derive_combined_bipredictive_merging_candidates function, triggering the heap-buffer-overflow condition.

Mitigation and Prevention

To address CVE-2023-49467, certain steps should be taken to enhance system security.

Immediate Steps to Take

Update Libde265 to a patched version that addresses the heap-buffer-overflow vulnerability.
Consider implementing additional security measures such as input validation and boundary checks.

Long-Term Security Practices

Regularly monitor security mailing lists and advisories for updates on vulnerabilities and patches.
Conduct periodic security audits and assessments to identify and mitigate any potential risks.

Patching and Updates

Apply official patches or updates released by Libde265 to fix CVE-2023-49467 and ensure the system is protected against this security flaw.