OpenTelemetry dotnet is a dotnet telemetry framework. In OpenTelemetry.Api 0.5.0-beta.2 to 1.15.2 and OpenTelemetry.Extensions.Propagators 1.3.1 to 1.15.2, The implementation details of the baggage, B3 and Jaeger processing code in the OpenTelemetry.Api and OpenTelemetry.Extensions.Propagators NuGet packages can allocate excessive memory when parsing which could create a potential denial of service (DoS) in the consuming application. This vulnerability is fixed in 1.15.3.
Weakness
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Opentelemetry | Opentelemetry | 0.5.0 (including) | 1.15.3 (excluding) |
| Opentelemetry.api | Opentelemetry | 0.5.0 (including) | 1.15.3 (excluding) |
| Opentelemetry.extensions.propagators | Opentelemetry | 1.3.0 (excluding) | 1.15.3 (excluding) |
Potential Mitigations
References
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/533
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061
- https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j