CVE-2023-30402 : Vulnerability Insights and Analysis

YASM v1.3.0 was found to have a heap overflow vulnerability through the function handle_dot_label at /nasm/nasm-token.re.

Understanding CVE-2023-30402

This article provides insights into the impact, technical details, and mitigation strategies related to CVE-2023-30402.

What is CVE-2023-30402?

CVE-2023-30402 is a vulnerability identified in YASM v1.3.0 that allows attackers to trigger a heap overflow by exploiting the function handle_dot_label at /nasm/nasm-token.re.

The Impact of CVE-2023-30402

This vulnerability could enable malicious actors to execute arbitrary code or crash the application, potentially leading to a denial of service (DoS) condition. It poses a significant risk to the security and stability of systems running the affected version.

Technical Details of CVE-2023-30402

Let's delve deeper into the specifics of this security flaw.

Vulnerability Description

The heap overflow vulnerability arises due to improper validation of user-supplied input within the handle_dot_label function, allowing an attacker to overwrite adjacent memory blocks.

Affected Systems and Versions

All installations of YASM v1.3.0 are impacted by this vulnerability. Users are advised to update to a patched version as soon as possible.

Exploitation Mechanism

Attackers can craft specially designed inputs to trigger the overflow, gaining unauthorized access or causing the application to behave unexpectedly.

Mitigation and Prevention

Discover the steps to safeguard your systems and prevent potential exploits.

Immediate Steps to Take

Disable the affected application until a patch is available.
Monitor official sources for the release of security updates.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflows and other common vulnerabilities.
Conduct regular security assessments and audits to identify and remediate risks promptly.

Patching and Updates

Update to the latest version of YASM to mitigate the vulnerability and ensure the ongoing security of your systems.