CVE-2017-17810 : What You Need to Know
Learn about CVE-2017-17810 affecting Netwide Assembler (NASM) 2.14rc0. Discover the impact, affected systems, exploitation method, and mitigation steps to prevent remote denial of service attacks.
Netwide Assembler (NASM) 2.14rc0 mishandles macro calls, leading to a remote denial of service exploit due to a 'SEGV on unknown address'.
Understanding CVE-2017-17810
What is CVE-2017-17810?
In NASM 2.14rc0, incorrect handling of macro calls with an incorrect number of arguments in asm/preproc.c can trigger a remote denial of service attack.
The Impact of CVE-2017-17810
The vulnerability allows attackers to exploit NASM, potentially causing a denial of service remotely.
Technical Details of CVE-2017-17810
Vulnerability Description
- NASM 2.14rc0 experiences a 'SEGV on unknown address' due to mishandling of macro calls with incorrect argument numbers.
Affected Systems and Versions
- Product: Netwide Assembler (NASM) 2.14rc0
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
- Attackers can exploit NASM by manipulating macro calls with an incorrect number of arguments, leading to a denial of service.
Mitigation and Prevention
Immediate Steps to Take
- Update NASM to a patched version that addresses the mishandling of macro calls.
- Monitor for any unusual activity that could indicate exploitation of this vulnerability.
Long-Term Security Practices
- Regularly update NASM and other software components to prevent known vulnerabilities.
- Implement network security measures to detect and block potential attacks.
Patching and Updates
- Apply patches provided by NASM to fix the vulnerability and prevent exploitation.