CVE-2020-24242 : Vulnerability Insights and Analysis

In Netwide Assembler (NASM) 2.15rc10, SEGV can be triggered in tok_text in asm/preproc.c by accessing READ memory.

Understanding CVE-2020-24242

In this CVE, a vulnerability in NASM can lead to a SEGV (Segmentation Violation) by accessing READ memory.

What is CVE-2020-24242?

The CVE-2020-24242 vulnerability occurs in NASM 2.15rc10, specifically in the tok_text function within asm/preproc.c, allowing an attacker to trigger a SEGV by accessing READ memory.

The Impact of CVE-2020-24242

This vulnerability could be exploited by a malicious actor to cause a denial of service (DoS) or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2020-24242

Vulnerability Description

The vulnerability in NASM 2.15rc10 allows for a SEGV to be triggered in tok_text by accessing READ memory.

Affected Systems and Versions

Product: Netwide Assembler (NASM)
Version: 2.15rc10

Exploitation Mechanism

The vulnerability can be exploited by an attacker to trigger a SEGV by accessing READ memory in the tok_text function of NASM.

Mitigation and Prevention

Immediate Steps to Take

Update NASM to a patched version that addresses the vulnerability.
Monitor security advisories for any updates or patches related to NASM.

Long-Term Security Practices

Regularly update software and libraries to mitigate potential vulnerabilities.
Implement proper input validation and sanitization to prevent memory-related vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates for NASM to protect against known vulnerabilities.