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      <title>GHSA-f2r5-5m7w-p5cx — opentelemetry-ebpf-profiler: Unprivileged process can trigger a denial of service on the ebpf-profiler agent</title>
      <link>https://vulnerability.circl.lu/vuln/ghsa-f2r5-5m7w-p5cx</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Go: go.opentelemetry.io/ebpf-profiler&lt;/p&gt;
&lt;p&gt;### Summary&lt;/p&gt;
&lt;p&gt;An unprivileged process can easily trigger the `processPIDEvents` goroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in the `openat2` syscall forever and the profiler can no longer work properly, it is a denial of service.&lt;/p&gt;
&lt;p&gt;### Impact&lt;/p&gt;
&lt;p&gt;The impact is limited to denial-of-service on the ebpf-profiler agent:
- There has to be a malicious workload albeit unprivileged.
- No exfiltration of data. No loss of data.&lt;/p&gt;
&lt;p&gt;###  Fix&lt;/p&gt;
&lt;p&gt;Fixed in https://github.com/open-telemetry/opentelemetry-ebpf-profiler/commit/234b685cab31c2cb2f79e966caeab168bcc489e4.&lt;/p&gt;
&lt;p&gt;Fix is part of [v.0.0.202622](https://github.com/open-telemetry/opentelemetry-ebpf-profiler/releases/tag/v0.0.202622).&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Go: go.opentelemetry.io/ebpf-profiler&lt;/p&gt;
&lt;p&gt;### Summary&lt;/p&gt;
&lt;p&gt;An unprivileged process can easily trigger the `processPIDEvents` goroutine to be blocked indefinitely, preventing the goroutine from analyzing any new ELF file. The goroutine stays blocked in the `openat2` syscall forever and the profiler can no longer work properly, it is a denial of service.&lt;/p&gt;
&lt;p&gt;### Impact&lt;/p&gt;
&lt;p&gt;The impact is limited to denial-of-service on the ebpf-profiler agent:
- There has to be a malicious workload albeit unprivileged.
- No exfiltration of data. No loss of data.&lt;/p&gt;
&lt;p&gt;###  Fix&lt;/p&gt;
&lt;p&gt;Fixed in https://github.com/open-telemetry/opentelemetry-ebpf-profiler/commit/234b685cab31c2cb2f79e966caeab168bcc489e4.&lt;/p&gt;
&lt;p&gt;Fix is part of [v.0.0.202622](https://github.com/open-telemetry/opentelemetry-ebpf-profiler/releases/tag/v0.0.202622).&lt;/p&gt;</content:encoded>
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