CVE-2018-11233 : Security Advisory and Response

In versions of Git prior to 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, there is an issue where the code used to verify the validity of pathnames on NTFS filesystems can potentially access memory beyond its bounds.

Understanding CVE-2018-11233

What is CVE-2018-11233?

CVE-2018-11233 is a vulnerability in Git versions that could allow an attacker to access memory beyond its bounds when verifying pathnames on NTFS filesystems.

The Impact of CVE-2018-11233

This vulnerability could be exploited by a remote attacker to execute arbitrary code or cause a denial of service on the affected system.

Technical Details of CVE-2018-11233

Vulnerability Description

The issue arises from the code used to check pathnames on NTFS, potentially leading to out-of-bounds memory access.

Affected Systems and Versions

Git versions prior to 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious pathnames on NTFS filesystems, leading to memory corruption.

Mitigation and Prevention

Immediate Steps to Take

Update Git to versions 2.13.7, 2.14.4, 2.15.2, 2.16.4, 2.17.1, or later to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

Regularly update software and apply security patches to prevent known vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches to secure your systems.