Add fuzzing audit blog post

content/en/blog/2024/fuzzing-audit-results.md

@@ -0,0 +1,71 @@
+---
+title: OpenTelemetry Collector Completes Fuzzing Audit
+linkTitle: Fuzzing Audit Results
+date: 2024-12-20
+author: '[Adam Korczynski](https://github.com/AdamKorcz)'
+issue: 5798
+sig: GC
+---
+
+OpenTelemetry is happy to announce the completion of the Collector's fuzzing
+audit sponsored by [the CNCF](https://www.cncf.io/) and carried out by
+[Ada Logics](https://adalogics.com/). The audit marks a significant step in the
+OpenTelemetry project, ensuring the security and reliability of the Collector
+for its users.
+
+## What is fuzzing?
+
+Fuzzing is a testing technique that executes an API with a high amount of
+pseudo-random inputs and observes the API's behavior. The technique has
+increased in popularity due to its empirical success in finding security
+vulnerabilities and reliability issues. Fuzzing initially developed with a focus
+on testing software implemented in memory-unsafe languages, where it has been
+most productive. However, in recent years, fuzzing has expanded to memory-safe
+languages as well.
+
+Over several years, the CNCF has invested in fuzzing for its ecosystem. This
+testing has found numerous security vulnerabilities in widely used projects such
+as Helm (CVE-2022-36055, CVE-2022-23524, CVE-2022-23526, CVE-2022-23525), the
+Notary project (CVE-2023-25656), containerd (CVE-2023-25153), Crossplane
+(CVE-2023-28494, CVE-2023-27483) and Flux (CVE-2022-36049).
+
+## OSS-Fuzz
+
+To initiate the audit, Ada Logics auditors integrated the OpenTelemetry
+Collector into [OSS-Fuzz](https://github.com/google/oss-fuzz). OSS-Fuzz is a
+service offered by Google to critical open source projects, free of charge. The
+service runs a project's fuzzers with excess resources multiple times per week.
+If OSS-Fuzz finds a crash, it notifies the project. It then checks if the
+project has fixed the crash upstream and if so, marks the issue(s) as fixed. The
+whole workflow happens continuously on Google's fuzzing infrastructure,
+supported by thousands of CPU cores. These testing resources outperform what
+developers or malicious threat actors can muster.
+
+## The tests
+
+After the Ada Logics team integrated OpenTelemetry into OSS-Fuzz, the next step
+was to write a series of fuzz tests for the OpenTelemetry Collector. The
+auditors wrote 49 fuzz tests for core components of the Collector, as well as
+several receivers and processors in the `opentelemetry-collector-contrib`
+repository.
+
+The fuzz tests were left to run while the audit team observed their health in
+production. At the completion of the fuzzing audit, the 49 fuzz tests on the
+OSS-Fuzz platform were healthy.
+
+To ensure continued reliability, the fuzz testing continues on the Collector
+even though the audit is complete.
+
+## The results so far
+
+Fuzz testing for the Collector is ongoing, allowing for changes to the project
+to be tested as well. As of the date of this post, no crashes have been
+detected.
+
+But the work is not done! The Ada Logics team created the Collector's fuzzing
+setup as a reference implementation that other OpenTelemetry subprojects can
+rely on to create their own fuzz testing, ensuring greater stability for the
+project as a whole.
+
+For more insight into the audit process, see the
+[published summary](https://github.com/open-telemetry/community/blob/main/reports/ADA_Logics-collector-fuzzing-audit-2024.pdf).

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