Description
OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelemetry Protocol format (OTLP), if the request results in a unsuccessful request (i.e. HTTP 4xx or 5xx), the response is read into memory with no upper-bound on the number of bytes consumed. This could cause memory exhaustion in the consuming application if the configured back-end/collector endpoint is attacker-controlled (or a network attacker can MitM the connection) and an extremely large body is returned by the response. This vulnerability is fixed in 1.15.2.
Problem types
CWE-789: Memory Allocation with Excessive Size Value
Product status
References
github.com/...dotnet/security/advisories/GHSA-q834-8qmm-v933
github.com/open-telemetry/opentelemetry-dotnet/pull/6564
github.com/open-telemetry/opentelemetry-dotnet/pull/7017
github.com/open-telemetry/opentelemetry-proto/pull/781