x-net-html: Asymmetric Resource Consumption (Amplification) in x-net-html (CVE-2024-45338) #shorts
Summary
Welcome back to our cybersecurity podcast. Today, we'll be discussing CVE-2024-45338, a recent vulnerability affecting the Go programming language's HTML parsing packages. This vulnerability poses a risk of denial of service due to its inefficient handling of specific crafted inputs.
Product details
The affected product involves the golang.org/x/net package, specifically its HTML parsing component. Versions up to 0.32.x are impacted by this vulnerability. This vulnerability affects any software projects that depend on this particular part of the Go language ecosystem.
Vulnerability type summary
This is a CWE-405: Asymmetric Resource Consumption vulnerability, which can lead to denial of service attacks. The attackers can exploit the mechanism of Parse functions to process data inefficiently and exhaust system resources.
Details of the vulnerability
The crux of the problem lies in the parsing functions within the x-net-html package. An attacker could craft input data that is parsed disproportionately slow compared to its size. This causes a bottleneck in resource allocation, effectively slowing down or halting the system, which can lead to a denial of service. Fedora 41 has already released security updates to address this vulnerability in associated packages like golang-github-aws-sdk-2 and rclone.
Conclusion
Developers using the affected Go version should update their packages to mitigate this vulnerability. Ensure that you regularly monitor and apply security patches to safeguard against resource amplification attacks. Thanks for listening, and stay tuned for our next episode on cybersecurity threats.
Watch the full video on YouTube: CVE-2024-45338
Remediation and exploitation details
This chain involves the following actors
This following systems are involved
Attack entry point
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