opentelemetry-go-contrib is a collection of extensions for OpenTelemetry-Go. The v0.38.0 release of `go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp` uses the `httpconv.ServerRequest` function to annotate metric measurements for the `http.server.request_content_length`, `http.server.response_content_length`, and `http.server.duration` instruments. The `ServerRequest` function sets the `http.target` attribute value to be the whole request URI (including the query string)[^1]. The metric instruments do not "forget" previous measurement attributes when `cumulative` temporality is used, this means the cardinality of the measurements allocated is directly correlated with the unique URIs handled. If the query string is constantly random, this will result in a constant increase in memory allocation that can be used in a denial-of-service attack. This issue has been addressed in version 0.39.0. Users are advised to upgrade. There are no known workarounds for this issue.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-02-08T19:21:37.401Z

Updated: 2024-08-02T11:18:35.672Z

Reserved: 2023-02-03T16:59:18.242Z

Link: CVE-2023-25151

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-02-08T20:15:24.620

Modified: 2023-03-14T15:35:40.793

Link: CVE-2023-25151

cve-icon Redhat

Severity : Important

Publid Date: 2023-02-08T00:00:00Z

Links: CVE-2023-25151 - Bugzilla