CVE-2020-18974 : Exploit Details and Defense Strategies
Learn about CVE-2020-18974, a Buffer Overflow vulnerability in Netwide Assembler (NASM) v2.15.xx allowing denial of service attacks via 'crc64i'. Find mitigation steps and prevention measures.
Netwide Assembler (NASM) v2.15.xx is affected by a Buffer Overflow vulnerability in the 'crc64i' component, allowing attackers to trigger a denial of service. This issue is distinct from CVE-2019-7147.
Understanding CVE-2020-18974
Buffer Overflow vulnerability in NASM v2.15.xx leading to denial of service.
What is CVE-2020-18974?
This CVE identifies a Buffer Overflow vulnerability in NASM v2.15.xx that enables attackers to cause a denial of service by exploiting the 'crc64i' component in 'nasmlib/crc64'.
The Impact of CVE-2020-18974
- Attackers can exploit this vulnerability to trigger a denial of service on affected systems.
Technical Details of CVE-2020-18974
Buffer Overflow vulnerability in NASM v2.15.xx.
Vulnerability Description
The vulnerability allows attackers to execute a denial of service attack via the 'crc64i' component in 'nasmlib/crc64'.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: All versions of NASM v2.15.xx are affected.
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating the 'crc64i' component in NASM v2.15.xx.
Mitigation and Prevention
Steps to address and prevent the CVE-2020-18974 vulnerability.
Immediate Steps to Take
- Apply security patches provided by NASM promptly.
- Monitor NASM's official channels for updates and advisories.
Long-Term Security Practices
- Regularly update NASM to the latest version to mitigate known vulnerabilities.
- Implement secure coding practices to prevent buffer overflow vulnerabilities.
Patching and Updates
- NASM users should apply the latest patches and updates to address CVE-2020-18974.