CVE-2023-35790 : What You Need to Know

An integer underflow vulnerability in libjxl before version 0.8.2 can result in a denial of service, potentially causing an infinite loop.

Understanding CVE-2023-35790

This section will provide insights into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2023-35790?

The issue discovered in dec_patch_dictionary.cc in libjxl before 0.8.2 involves an integer underflow during patch decoding, leading to a denial of service.

The Impact of CVE-2023-35790

The vulnerability could be exploited by an attacker to cause a denial of service, potentially triggering an infinite loop that may impact system availability.

Technical Details of CVE-2023-35790

Below are the specific technical details related to the CVE-2023-35790 vulnerability.

Vulnerability Description

The vulnerability resides in the patch decoding functionality of libjxl prior to version 0.8.2, allowing for an integer underflow that can be abused to disrupt system operation.

Affected Systems and Versions

All versions of libjxl before 0.8.2 are affected by this vulnerability.

Exploitation Mechanism

An attacker can exploit this vulnerability by crafting specific patches to trigger the integer underflow, potentially resulting in a denial of service condition.

Mitigation and Prevention

To safeguard systems from the CVE-2023-35790 vulnerability, immediate steps and long-term security practices are vital.

Immediate Steps to Take

It is recommended to update libjxl to version 0.8.2 or later to mitigate the integer underflow vulnerability and prevent potential denial of service attacks.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and staying informed about software patches are essential for long-term security.

Patching and Updates

Regularly check for updates from libjxl and apply patches promptly to address any newly discovered vulnerabilities.