CVE-2018-10016 Explained : Impact and Mitigation

Netwide Assembler (NASM) version 2.14rc0 is vulnerable to a division-by-zero issue in the expr5 function of the asm/eval.c file. This vulnerability can be exploited by providing a malformed input file.

Understanding CVE-2018-10016

This CVE entry describes a specific vulnerability in NASM version 2.14rc0 that allows for a division-by-zero attack.

What is CVE-2018-10016?

The vulnerability in NASM version 2.14rc0 allows attackers to trigger a division-by-zero condition by manipulating the input file provided to the expr5 function.

The Impact of CVE-2018-10016

Exploiting this vulnerability could lead to a denial of service (DoS) condition or potentially enable attackers to execute arbitrary code on the affected system.

Technical Details of CVE-2018-10016

NASM version 2.14rc0's vulnerability to division-by-zero attacks is a critical security issue that requires immediate attention.

Vulnerability Description

The flaw in the expr5 function of NASM's asm/eval.c file allows for the exploitation of a division-by-zero condition through a malformed input file.

Affected Systems and Versions

Product: Netwide Assembler (NASM)
Version: 2.14rc0

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a specially designed input file to trigger the division-by-zero condition in the expr5 function.

Mitigation and Prevention

It is crucial to take immediate steps to address and mitigate the risks posed by CVE-2018-10016.

Immediate Steps to Take

Update NASM to a patched version that addresses the division-by-zero vulnerability.
Implement input validation mechanisms to prevent malformed files from being processed.

Long-Term Security Practices

Regularly monitor for security updates and patches for NASM.
Conduct security assessments and code reviews to identify and address similar vulnerabilities.

Patching and Updates

Apply the latest patches and updates provided by NASM to ensure the security of the software.