Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2023-35945

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 27.7%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2023-35945


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