CVE-2021-45257 : Vulnerability Insights and Analysis

An infinite loop vulnerability exists in nasm 2.16rc0 via the gpaste_tokens function.

Understanding CVE-2021-45257

A vulnerability in nasm 2.16rc0 could lead to an infinite loop due to the gpaste_tokens function.

What is CVE-2021-45257?

The CVE-2021-45257 vulnerability involves an infinite loop issue present in nasm 2.16rc0 through the gpaste_tokens function.

The Impact of CVE-2021-45257

This vulnerability could allow an attacker to execute a denial of service (DoS) attack by causing an application using the affected function to enter an infinite loop.

Technical Details of CVE-2021-45257

The technical details of the CVE-2021-45257 vulnerability are as follows:

Vulnerability Description

The vulnerability is due to a flaw in the gpaste_tokens function in nasm 2.16rc0, leading to an infinite loop.

Affected Systems and Versions

Affected Version: nasm 2.16rc0

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting specific inputs that trigger the infinite loop within the gpaste_tokens function.

Mitigation and Prevention

To address CVE-2021-45257, consider the following steps:

Immediate Steps to Take

Disable or restrict access to affected applications until a patch is available.
Monitor for any unusual behavior indicating a DoS attack.

Long-Term Security Practices

Regularly update software to the latest versions to protect against known vulnerabilities.
Employ proper input validation techniques in software development to mitigate such issues.

Patching and Updates

Check for patches or updates from the nasm project to address the infinite loop vulnerability in version 2.16rc0.