CVE-2023-49464 : Exploit Details and Defense Strategies

This article discusses the details of CVE-2023-49464, a vulnerability found in libheif v1.17.5 that can lead to a segmentation violation.

Understanding CVE-2023-49464

In this section, we will delve into the nature of CVE-2023-49464 and its potential impact.

What is CVE-2023-49464?

CVE-2023-49464 is a security flaw discovered in libheif v1.17.5, specifically related to the function UncompressedImageCodec::get_luma_bits_per_pixel_from_configuration_unci, which can trigger a segmentation violation.

The Impact of CVE-2023-49464

The vulnerability poses a risk of exploitation, potentially leading to unauthorized access or denial of service attacks.

Technical Details of CVE-2023-49464

This section provides in-depth technical insights into the vulnerability.

Vulnerability Description

The issue arises due to improper handling within the mentioned function, allowing an attacker to craft a malicious input leading to a segmentation fault.

Affected Systems and Versions

All instances of libheif v1.17.5 are affected by this vulnerability, regardless of the vendor or specific product.

Exploitation Mechanism

An attacker can exploit this vulnerability by sending specially crafted input to the vulnerable function, resulting in a segmentation violation.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks posed by CVE-2023-49464 in this section.

Immediate Steps to Take

Users are advised to update libheif to a fixed version or apply patches provided by the vendor to remediate this vulnerability.

Long-Term Security Practices

Regularly monitoring security advisories and promptly applying updates can help prevent such vulnerabilities from being exploited.

Patching and Updates

Ensure that your software and libraries are regularly updated to protect against known security vulnerabilities.