| Package | Affected versions | Patched versions |
|---|---|---|
| envoy | ≥ 1.24.0, < 1.24.9≥ 1.25.0, < 1.25.8≥ 1.26.0, < 1.26.3< 1.23.11 | 1.24.91.25.81.26.31.23.11 |
| nghttp2 | < 1.55.1 | 1.55.1 |
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.
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