CVE-2019-5481 Explained : Impact and Mitigation

The cURL versions 7.52.0 to 7.65.3 contain a double-free vulnerability in the FTP-kerberos code.

Understanding CVE-2019-5481

This CVE involves a double-free vulnerability in specific versions of cURL, potentially leading to security risks.

What is CVE-2019-5481?

CVE-2019-5481 is a vulnerability found in cURL versions 7.52.0 to 7.65.3, specifically in the FTP-kerberos code. This flaw could be exploited by attackers to execute arbitrary code or cause a denial of service.

The Impact of CVE-2019-5481

The vulnerability could allow remote attackers to execute arbitrary code or trigger a denial of service by exploiting the double-free issue in the FTP-kerberos code of affected cURL versions.

Technical Details of CVE-2019-5481

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in cURL versions 7.52.0 to 7.65.3 is a double-free issue in the FTP-kerberos code, which could be exploited by malicious actors.

Affected Systems and Versions

Product: cURL
Versions: 7.52.0 to 7.65.3

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted requests to the FTP-kerberos code, leading to a double-free condition and potential code execution.

Mitigation and Prevention

Protecting systems from CVE-2019-5481 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update cURL to a non-vulnerable version immediately.
Monitor network traffic for any signs of exploitation.
Apply network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate users on safe browsing habits and potential social engineering tactics.

Patching and Updates

Ensure that all systems running affected versions of cURL are patched with the latest updates to mitigate the CVE-2019-5481 vulnerability.