Discover the impact of CVE-2022-30634, a vulnerability in crypto/rand before Go 1.17.11 and Go 1.18.3 on Windows, allowing an attacker to cause an indefinite hang.
In this article, we will explore the details of CVE-2022-30634, which involves an indefinite hang with large buffers on Windows in crypto/rand.
Understanding CVE-2022-30634
This CVE highlights an issue in the Go standard library affecting the crypto/rand package on Windows systems.
What is CVE-2022-30634?
The vulnerability in Read function in crypto/rand before versions 1.17.11 and 1.18.3 on Windows allows an attacker to trigger an indefinite hang by exploiting a specific buffer size.
The Impact of CVE-2022-30634
The impact of this CVE is the potential for an attacker to cause a denial-of-service (DoS) situation by exploiting the infinite loop in the Read function.
Technical Details of CVE-2022-30634
Let's delve into the technical aspects of this vulnerability.
Vulnerability Description
The vulnerability arises from an infinite loop in the Read function, enabling an attacker to trigger a hang by passing a buffer larger than the specified size.
Affected Systems and Versions
Exploitation Mechanism
By passing a buffer larger than 1 << 32 - 1 bytes, an attacker can exploit the Read function and cause an indefinite hang on Windows systems.
Mitigation and Prevention
To address CVE-2022-30634, consider the following mitigation strategies.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Stay informed about security advisories and apply patches promptly to ensure a secure environment.