CVE-2023-49568 : Security Advisory and Response
Learn about CVE-2023-49568, a high-severity DoS vulnerability in go-git versions before v5.11. Find out the impact, affected systems, and mitigation steps to secure your environment.
A denial of service (DoS) vulnerability has been discovered in go-git versions prior to v5.11. This vulnerability allows attackers to trigger resource exhaustion in go-git clients by providing specially crafted responses from a Git server.
Understanding CVE-2023-49568
This section will cover what CVE-2023-49568 is and its impact, technical details, as well as mitigation and prevention strategies.
What is CVE-2023-49568?
CVE-2023-49568 is a DoS vulnerability affecting go-git versions before v5.11. Attackers can exploit this vulnerability by sending crafted responses from a Git server to exhaust resources on go-git clients.
The Impact of CVE-2023-49568
The impact of this vulnerability is rated as high with a CVSS v3.1 base score of 7.5. It can lead to denial of service attacks, affecting the availability of the system.
Technical Details of CVE-2023-49568
Let's delve into the technical aspects of CVE-2023-49568 including the vulnerability description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability in go-git versions prior to v5.11 allows attackers to trigger resource exhaustion in clients by providing specially crafted responses from a Git server.
Affected Systems and Versions
The specific version affected by this vulnerability is go-git version 5.11.0. Applications using only the in-memory filesystem are not impacted by this issue.
Exploitation Mechanism
Attackers exploit this vulnerability by sending malicious responses from a Git server, causing resource exhaustion in go-git clients.
Mitigation and Prevention
Discover the steps you can take to mitigate the risks associated with CVE-2023-49568 and prevent potential attacks.
Immediate Steps to Take
To address CVE-2023-49568, users are advised to upgrade to go-git version 5.11 which contains the fix for this DoS vulnerability.
Long-Term Security Practices
Implementing proper input validation practices and keeping software up to date are essential for enhancing overall security posture.
Patching and Updates
Regularly applying security patches and updates provided by the software vendor is crucial in preventing exploitation of known vulnerabilities.