CVE-2023-45142
CVSS 3.1 Score 7.5 of 10 (high)
Details
Summary
The vulnerability with CVE ID CVE-2023-45142 affects OpenTelemetry-Go Contrib, a collection of third-party packages for OpenTelemetry-Go. It is a handler wrapper that adds labels to HTTP requests, and these labels have unbound cardinality. This vulnerability can lead to memory exhaustion on the server if many malicious requests are sent with random and long user agents or HTTP methods. To remediate the issue, version 0.44.0 of the library fixed this by restricting the values collected for attribute `http.request.method` to a set of well-known values and removing other high cardinality attributes. A workaround is to use `otelhttp.WithFilter()`, but it requires additional implementation. The potential danger of this vulnerability is high, as it can cause memory exhaustion and impact the availability of the affected organization's server.
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