CVE-2018-19755 : What You Need to Know
Discover the impact of CVE-2018-19755, a vulnerability in Netwide Assembler (NASM) 2.14rc16 that allows unauthorized access to memory addresses, potentially leading to a denial of service.
Netwide Assembler (NASM) 2.14rc16 has a vulnerability in the asm/preproc.c file that can lead to unauthorized access to an address, potentially resulting in a denial of service due to an out-of-bounds array access.
Understanding CVE-2018-19755
In this section, we will delve into the details of the CVE-2018-19755 vulnerability.
What is CVE-2018-19755?
The vulnerability in NASM 2.14rc16 allows unauthorized access to an address, leading to a denial of service due to an out-of-bounds array access. The issue stems from a specific conversion that may produce a negative integer.
The Impact of CVE-2018-19755
Exploiting this vulnerability can result in a denial of service due to unauthorized access to memory addresses, potentially disrupting the normal operation of the affected system.
Technical Details of CVE-2018-19755
Let's explore the technical aspects of CVE-2018-19755.
Vulnerability Description
The vulnerability exists in the is_mmacro function within the asm/preproc.c file of NASM 2.14rc16, allowing unauthorized access to memory addresses.
Affected Systems and Versions
- Product: Netwide Assembler (NASM) 2.14rc16
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability can be exploited by triggering a specific conversion that results in a negative integer, leading to unauthorized access to memory addresses.
Mitigation and Prevention
Learn how to mitigate and prevent the CVE-2018-19755 vulnerability.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor official sources for updates and security advisories.
- Implement proper input validation mechanisms to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and dependencies to patch known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Stay informed about security updates and patches released by NASM.
- Follow best practices for secure coding and configuration to reduce the risk of similar vulnerabilities.