CVE-2018-19209 : Exploit Details and Defense Strategies

NASM version 2.14rc15 is vulnerable to a NULL pointer dereference issue in the find_label function, potentially leading to a Denial of Service (DoS) attack.

Understanding CVE-2018-19209

NASM 2.14rc15 is susceptible to a critical security vulnerability that could be exploited by attackers for DoS attacks.

What is CVE-2018-19209?

The vulnerability in NASM version 2.14rc15 allows attackers to trigger a NULL pointer dereference in the find_label function, enabling them to disrupt the normal operation of the software, leading to a DoS condition.

The Impact of CVE-2018-19209

Exploitation of this vulnerability could result in a DoS attack, causing the affected NASM software to become unresponsive or crash, impacting system availability and performance.

Technical Details of CVE-2018-19209

NASM version 2.14rc15 is affected by a specific vulnerability that can be described as follows:

Vulnerability Description

The find_label function in asm/labels.c within NASM 2.14rc15 experiences a NULL pointer dereference vulnerability, which attackers could abuse to execute a DoS attack.

Affected Systems and Versions

Product: Netwide Assembler (NASM)
Version: 2.14rc15

Exploitation Mechanism

Attackers can exploit the vulnerability by crafting malicious input to trigger the NULL pointer dereference in the find_label function, leading to a DoS condition.

Mitigation and Prevention

To address CVE-2018-19209 and enhance system security, consider the following steps:

Immediate Steps to Take

@ Updateaffected NASM users should update to a patched version that addresses the NULL pointer dereference vulnerability.
Implement proper input validation mechanisms to prevent malicious inputs that could trigger the vulnerability.

Long-Term Security Practices

Regularly monitor security advisories and updates from NASM to stay informed about potential vulnerabilities.
Conduct security assessments and audits to identify and mitigate similar vulnerabilities in the software.

Patching and Updates

Apply official patches or updates released by NASM to fix the vulnerability and enhance the overall security posture of the software.