CVE-2020-16590 : What You Need to Know
Learn about CVE-2020-16590, a double free vulnerability in GNU Binutils 2.35, allowing attackers to execute code or cause denial of service. Find mitigation steps and prevention measures here.
A double free vulnerability in GNU Binutils 2.35 can be exploited via a crafted file, potentially leading to code execution.
Understanding CVE-2020-16590
This CVE involves a specific vulnerability in the Binary File Descriptor (BFD) in GNU Binutils 2.35.
What is CVE-2020-16590?
This CVE identifies a double free vulnerability in the Binary File Descriptor (BFD) in GNU Binutils 2.35. The issue exists in the process_symbol_table, as demonstrated in readelf, when processing a maliciously crafted file.
The Impact of CVE-2020-16590
The vulnerability could allow an attacker to execute arbitrary code or cause a denial of service (DoS) condition on the affected system.
Technical Details of CVE-2020-16590
This section provides more in-depth technical details about the CVE.
Vulnerability Description
The vulnerability is a double free issue in the Binary File Descriptor (BFD) (libbrd) in GNU Binutils 2.35, triggered during the processing of symbol tables in readelf.
Affected Systems and Versions
- Affected Version: GNU Binutils 2.35
- Specific Products/Vendors: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by an attacker through a specially crafted file, potentially leading to code execution or a DoS condition.
Mitigation and Prevention
Protecting systems from CVE-2020-16590 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor vendor communications for updates and advisories.
- Implement file integrity monitoring to detect unauthorized changes.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Conduct security assessments and penetration testing to identify vulnerabilities.
- Educate users on safe computing practices and awareness of social engineering tactics.
Patching and Updates
- Stay informed about security updates from GNU Binutils or relevant software vendors.
- Apply patches or follow recommended mitigation strategies to address the vulnerability effectively.