CVE-2022-28948 : Security Advisory and Response

An issue in the Unmarshal function in Go-Yaml v3 causes the program to crash when attempting to deserialize invalid input.

Understanding CVE-2022-28948

This CVE identifies a vulnerability in the Unmarshal function in Go-Yaml v3 that leads to a program crash.

What is CVE-2022-28948?

The vulnerability in the Unmarshal function of Go-Yaml v3 triggers a program crash when trying to deserialize invalid input.

The Impact of CVE-2022-28948

Exploiting this vulnerability could lead to denial of service (DoS) as the program crashes when processing malformed input.

Technical Details of CVE-2022-28948

The technical details of this CVE include:

Vulnerability Description

The issue lies in the Unmarshal function of Go-Yaml v3, causing a crash during invalid input deserialization.

Affected Systems and Versions

All systems and versions using Go-Yaml v3 are affected by this vulnerability.

Exploitation Mechanism

Cyber attackers can exploit this vulnerability by providing specially crafted, invalid input, leading to a program crash.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-28948, consider the following steps:

Immediate Steps to Take

Update to a patched version of Go-Yaml v3 to prevent the crash vulnerability.
Avoid processing untrusted input with the vulnerable Unmarshal function.

Long-Term Security Practices

Regularly monitor and apply updates from the Go-Yaml project to address security vulnerabilities promptly.
Implement input validation mechanisms to filter out invalid inputs before processing.

Patching and Updates

Stay informed about security advisories and patches released by Go-Yaml to stay protected from known vulnerabilities.