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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cpe:2.3:a:envoyproxy:envoy:-
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cpe:2.3:a:envoyproxy:envoy:1.0.0
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cpe:2.3:a:envoyproxy:envoy:1.1.0
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cpe:2.3:a:envoyproxy:envoy:1.10.0
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cpe:2.3:a:envoyproxy:envoy:1.11.0
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cpe:2.3:a:envoyproxy:envoy:1.11.1
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cpe:2.3:a:envoyproxy:envoy:1.11.2
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cpe:2.3:a:envoyproxy:envoy:1.12.0
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cpe:2.3:a:envoyproxy:envoy:1.12.1
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cpe:2.3:a:envoyproxy:envoy:1.12.2
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cpe:2.3:a:envoyproxy:envoy:1.12.3
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cpe:2.3:a:envoyproxy:envoy:1.12.4
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cpe:2.3:a:envoyproxy:envoy:1.12.5
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cpe:2.3:a:envoyproxy:envoy:1.12.6
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cpe:2.3:a:envoyproxy:envoy:1.12.7
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cpe:2.3:a:envoyproxy:envoy:1.13.0
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cpe:2.3:a:envoyproxy:envoy:1.13.1
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cpe:2.3:a:envoyproxy:envoy:1.13.2
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cpe:2.3:a:envoyproxy:envoy:1.13.3
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cpe:2.3:a:envoyproxy:envoy:1.13.4
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cpe:2.3:a:envoyproxy:envoy:1.13.5
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cpe:2.3:a:envoyproxy:envoy:1.13.6
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cpe:2.3:a:envoyproxy:envoy:1.13.7
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cpe:2.3:a:envoyproxy:envoy:1.13.8
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cpe:2.3:a:envoyproxy:envoy:1.14.0
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cpe:2.3:a:envoyproxy:envoy:1.14.1
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cpe:2.3:a:envoyproxy:envoy:1.14.2
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cpe:2.3:a:envoyproxy:envoy:1.14.3
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cpe:2.3:a:envoyproxy:envoy:1.14.4
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cpe:2.3:a:envoyproxy:envoy:1.14.5
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cpe:2.3:a:envoyproxy:envoy:1.14.6
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cpe:2.3:a:envoyproxy:envoy:1.14.7
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cpe:2.3:a:envoyproxy:envoy:1.15.0
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cpe:2.3:a:envoyproxy:envoy:1.15.1
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cpe:2.3:a:envoyproxy:envoy:1.15.2
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cpe:2.3:a:envoyproxy:envoy:1.15.3
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cpe:2.3:a:envoyproxy:envoy:1.15.4
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cpe:2.3:a:envoyproxy:envoy:1.15.5
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cpe:2.3:a:envoyproxy:envoy:1.16.0
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cpe:2.3:a:envoyproxy:envoy:1.16.1
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cpe:2.3:a:envoyproxy:envoy:1.16.2
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cpe:2.3:a:envoyproxy:envoy:1.16.3
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cpe:2.3:a:envoyproxy:envoy:1.16.4
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cpe:2.3:a:envoyproxy:envoy:1.16.5
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cpe:2.3:a:envoyproxy:envoy:1.17.0
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cpe:2.3:a:envoyproxy:envoy:1.17.1
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cpe:2.3:a:envoyproxy:envoy:1.17.2
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cpe:2.3:a:envoyproxy:envoy:1.17.3
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cpe:2.3:a:envoyproxy:envoy:1.17.4
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cpe:2.3:a:envoyproxy:envoy:1.18.0
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cpe:2.3:a:envoyproxy:envoy:1.18.1
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cpe:2.3:a:envoyproxy:envoy:1.18.2
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cpe:2.3:a:envoyproxy:envoy:1.18.3
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cpe:2.3:a:envoyproxy:envoy:1.18.4
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cpe:2.3:a:envoyproxy:envoy:1.19.0
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cpe:2.3:a:envoyproxy:envoy:1.19.1
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cpe:2.3:a:envoyproxy:envoy:1.19.3
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cpe:2.3:a:envoyproxy:envoy:1.19.4
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cpe:2.3:a:envoyproxy:envoy:1.19.5
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cpe:2.3:a:envoyproxy:envoy:1.2.0
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cpe:2.3:a:envoyproxy:envoy:1.20.0
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cpe:2.3:a:envoyproxy:envoy:1.20.1
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cpe:2.3:a:envoyproxy:envoy:1.20.2
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cpe:2.3:a:envoyproxy:envoy:1.20.3
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cpe:2.3:a:envoyproxy:envoy:1.20.4
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cpe:2.3:a:envoyproxy:envoy:1.20.5
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cpe:2.3:a:envoyproxy:envoy:1.20.6
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cpe:2.3:a:envoyproxy:envoy:1.20.7
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cpe:2.3:a:envoyproxy:envoy:1.21.0
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cpe:2.3:a:envoyproxy:envoy:1.21.1
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cpe:2.3:a:envoyproxy:envoy:1.21.2
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cpe:2.3:a:envoyproxy:envoy:1.21.3
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cpe:2.3:a:envoyproxy:envoy:1.21.4
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cpe:2.3:a:envoyproxy:envoy:1.21.5
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cpe:2.3:a:envoyproxy:envoy:1.21.6
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cpe:2.3:a:envoyproxy:envoy:1.22.0
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cpe:2.3:a:envoyproxy:envoy:1.22.1
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cpe:2.3:a:envoyproxy:envoy:1.22.10
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cpe:2.3:a:envoyproxy:envoy:1.22.11
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cpe:2.3:a:envoyproxy:envoy:1.22.2
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cpe:2.3:a:envoyproxy:envoy:1.22.3
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cpe:2.3:a:envoyproxy:envoy:1.22.4
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cpe:2.3:a:envoyproxy:envoy:1.22.5
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cpe:2.3:a:envoyproxy:envoy:1.22.6
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cpe:2.3:a:envoyproxy:envoy:1.22.7
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cpe:2.3:a:envoyproxy:envoy:1.22.8
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cpe:2.3:a:envoyproxy:envoy:1.22.9
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cpe:2.3:a:envoyproxy:envoy:1.23.0
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cpe:2.3:a:envoyproxy:envoy:1.23.1
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cpe:2.3:a:envoyproxy:envoy:1.23.10
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cpe:2.3:a:envoyproxy:envoy:1.23.2
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cpe:2.3:a:envoyproxy:envoy:1.23.3
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cpe:2.3:a:envoyproxy:envoy:1.23.4
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cpe:2.3:a:envoyproxy:envoy:1.23.5
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cpe:2.3:a:envoyproxy:envoy:1.23.6
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cpe:2.3:a:envoyproxy:envoy:1.23.7
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cpe:2.3:a:envoyproxy:envoy:1.23.8
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cpe:2.3:a:envoyproxy:envoy:1.23.9
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cpe:2.3:a:envoyproxy:envoy:1.24.0
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cpe:2.3:a:envoyproxy:envoy:1.24.1
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cpe:2.3:a:envoyproxy:envoy:1.24.2
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cpe:2.3:a:envoyproxy:envoy:1.24.3
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cpe:2.3:a:envoyproxy:envoy:1.24.4
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cpe:2.3:a:envoyproxy:envoy:1.24.5
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cpe:2.3:a:envoyproxy:envoy:1.24.6
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cpe:2.3:a:envoyproxy:envoy:1.24.7
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cpe:2.3:a:envoyproxy:envoy:1.24.8
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cpe:2.3:a:envoyproxy:envoy:1.25.0
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cpe:2.3:a:envoyproxy:envoy:1.25.1
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cpe:2.3:a:envoyproxy:envoy:1.25.2
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cpe:2.3:a:envoyproxy:envoy:1.25.3
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cpe:2.3:a:envoyproxy:envoy:1.25.4
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cpe:2.3:a:envoyproxy:envoy:1.25.5
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cpe:2.3:a:envoyproxy:envoy:1.25.6
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cpe:2.3:a:envoyproxy:envoy:1.25.7
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cpe:2.3:a:envoyproxy:envoy:1.26.0
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cpe:2.3:a:envoyproxy:envoy:1.26.1
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cpe:2.3:a:envoyproxy:envoy:1.26.2
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cpe:2.3:a:envoyproxy:envoy:1.3.0
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cpe:2.3:a:envoyproxy:envoy:1.4.0
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cpe:2.3:a:envoyproxy:envoy:1.5.0
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cpe:2.3:a:envoyproxy:envoy:1.6.0
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cpe:2.3:a:envoyproxy:envoy:1.7.0
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cpe:2.3:a:envoyproxy:envoy:1.7.1
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cpe:2.3:a:envoyproxy:envoy:1.8.0
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cpe:2.3:a:envoyproxy:envoy:1.9.0
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cpe:2.3:a:envoyproxy:envoy:1.9.1
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cpe:2.3:a:nghttp2:nghttp2:0.1.0
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cpe:2.3:a:nghttp2:nghttp2:0.2.0
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cpe:2.3:a:nghttp2:nghttp2:0.3.0
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cpe:2.3:a:nghttp2:nghttp2:0.3.1
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cpe:2.3:a:nghttp2:nghttp2:0.3.2
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cpe:2.3:a:nghttp2:nghttp2:0.4.0
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cpe:2.3:a:nghttp2:nghttp2:0.4.1
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cpe:2.3:a:nghttp2:nghttp2:0.5.0
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cpe:2.3:a:nghttp2:nghttp2:0.5.1
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cpe:2.3:a:nghttp2:nghttp2:0.6.0
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cpe:2.3:a:nghttp2:nghttp2:0.6.1
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cpe:2.3:a:nghttp2:nghttp2:0.6.2
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cpe:2.3:a:nghttp2:nghttp2:0.6.3
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cpe:2.3:a:nghttp2:nghttp2:0.6.4
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cpe:2.3:a:nghttp2:nghttp2:0.6.5
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cpe:2.3:a:nghttp2:nghttp2:0.6.6
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cpe:2.3:a:nghttp2:nghttp2:0.6.7
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cpe:2.3:a:nghttp2:nghttp2:0.7.0
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cpe:2.3:a:nghttp2:nghttp2:0.7.1
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cpe:2.3:a:nghttp2:nghttp2:0.7.10
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cpe:2.3:a:nghttp2:nghttp2:0.7.11
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cpe:2.3:a:nghttp2:nghttp2:0.7.12
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cpe:2.3:a:nghttp2:nghttp2:0.7.13
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cpe:2.3:a:nghttp2:nghttp2:0.7.14
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cpe:2.3:a:nghttp2:nghttp2:0.7.15
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cpe:2.3:a:nghttp2:nghttp2:0.7.2
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cpe:2.3:a:nghttp2:nghttp2:0.7.3
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cpe:2.3:a:nghttp2:nghttp2:0.7.4
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cpe:2.3:a:nghttp2:nghttp2:0.7.5
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cpe:2.3:a:nghttp2:nghttp2:0.7.6
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cpe:2.3:a:nghttp2:nghttp2:0.7.7
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cpe:2.3:a:nghttp2:nghttp2:0.7.8
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cpe:2.3:a:nghttp2:nghttp2:0.7.9
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cpe:2.3:a:nghttp2:nghttp2:1.0.0
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cpe:2.3:a:nghttp2:nghttp2:1.0.1
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cpe:2.3:a:nghttp2:nghttp2:1.0.2
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cpe:2.3:a:nghttp2:nghttp2:1.0.3
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cpe:2.3:a:nghttp2:nghttp2:1.0.4
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cpe:2.3:a:nghttp2:nghttp2:1.0.5
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cpe:2.3:a:nghttp2:nghttp2:1.1.0
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cpe:2.3:a:nghttp2:nghttp2:1.1.1
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cpe:2.3:a:nghttp2:nghttp2:1.1.2
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cpe:2.3:a:nghttp2:nghttp2:1.10.0
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cpe:2.3:a:nghttp2:nghttp2:1.11.0
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cpe:2.3:a:nghttp2:nghttp2:1.11.1
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cpe:2.3:a:nghttp2:nghttp2:1.12.0
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cpe:2.3:a:nghttp2:nghttp2:1.13.0
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cpe:2.3:a:nghttp2:nghttp2:1.14.0
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cpe:2.3:a:nghttp2:nghttp2:1.14.1
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cpe:2.3:a:nghttp2:nghttp2:1.15.0
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cpe:2.3:a:nghttp2:nghttp2:1.16.0
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cpe:2.3:a:nghttp2:nghttp2:1.16.1
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cpe:2.3:a:nghttp2:nghttp2:1.17.0
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cpe:2.3:a:nghttp2:nghttp2:1.18.0
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cpe:2.3:a:nghttp2:nghttp2:1.18.1
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cpe:2.3:a:nghttp2:nghttp2:1.19.0
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cpe:2.3:a:nghttp2:nghttp2:1.2.0
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cpe:2.3:a:nghttp2:nghttp2:1.2.1
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cpe:2.3:a:nghttp2:nghttp2:1.20.0
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cpe:2.3:a:nghttp2:nghttp2:1.21.0
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cpe:2.3:a:nghttp2:nghttp2:1.21.1
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cpe:2.3:a:nghttp2:nghttp2:1.22.0
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cpe:2.3:a:nghttp2:nghttp2:1.23.0
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cpe:2.3:a:nghttp2:nghttp2:1.23.1
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cpe:2.3:a:nghttp2:nghttp2:1.24.0
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cpe:2.3:a:nghttp2:nghttp2:1.25.0
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cpe:2.3:a:nghttp2:nghttp2:1.26.0
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cpe:2.3:a:nghttp2:nghttp2:1.27.0
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cpe:2.3:a:nghttp2:nghttp2:1.28.0
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cpe:2.3:a:nghttp2:nghttp2:1.29.0
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cpe:2.3:a:nghttp2:nghttp2:1.3.0
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cpe:2.3:a:nghttp2:nghttp2:1.3.1
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cpe:2.3:a:nghttp2:nghttp2:1.3.2
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cpe:2.3:a:nghttp2:nghttp2:1.3.3
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cpe:2.3:a:nghttp2:nghttp2:1.3.4
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cpe:2.3:a:nghttp2:nghttp2:1.30.0
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cpe:2.3:a:nghttp2:nghttp2:1.31.0
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cpe:2.3:a:nghttp2:nghttp2:1.31.1
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cpe:2.3:a:nghttp2:nghttp2:1.32.0
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cpe:2.3:a:nghttp2:nghttp2:1.32.1
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cpe:2.3:a:nghttp2:nghttp2:1.33.0
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cpe:2.3:a:nghttp2:nghttp2:1.34.0
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cpe:2.3:a:nghttp2:nghttp2:1.35.0
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cpe:2.3:a:nghttp2:nghttp2:1.35.1
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cpe:2.3:a:nghttp2:nghttp2:1.36.0
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cpe:2.3:a:nghttp2:nghttp2:1.37.0
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cpe:2.3:a:nghttp2:nghttp2:1.38.0
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cpe:2.3:a:nghttp2:nghttp2:1.39.0
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cpe:2.3:a:nghttp2:nghttp2:1.39.1
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cpe:2.3:a:nghttp2:nghttp2:1.39.2
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cpe:2.3:a:nghttp2:nghttp2:1.4.0
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cpe:2.3:a:nghttp2:nghttp2:1.40.0
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cpe:2.3:a:nghttp2:nghttp2:1.41.0
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cpe:2.3:a:nghttp2:nghttp2:1.42.0
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cpe:2.3:a:nghttp2:nghttp2:1.43.0
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cpe:2.3:a:nghttp2:nghttp2:1.44.0
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cpe:2.3:a:nghttp2:nghttp2:1.45.0
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cpe:2.3:a:nghttp2:nghttp2:1.45.1
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cpe:2.3:a:nghttp2:nghttp2:1.46.0
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cpe:2.3:a:nghttp2:nghttp2:1.47.0
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cpe:2.3:a:nghttp2:nghttp2:1.48.0
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cpe:2.3:a:nghttp2:nghttp2:1.49.0
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cpe:2.3:a:nghttp2:nghttp2:1.5.0
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cpe:2.3:a:nghttp2:nghttp2:1.50.0
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cpe:2.3:a:nghttp2:nghttp2:1.51.0
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cpe:2.3:a:nghttp2:nghttp2:1.52.0
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cpe:2.3:a:nghttp2:nghttp2:1.53.0
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cpe:2.3:a:nghttp2:nghttp2:1.54.0
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cpe:2.3:a:nghttp2:nghttp2:1.55.0
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cpe:2.3:a:nghttp2:nghttp2:1.6.0
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cpe:2.3:a:nghttp2:nghttp2:1.7.0
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cpe:2.3:a:nghttp2:nghttp2:1.7.1
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cpe:2.3:a:nghttp2:nghttp2:1.8.0
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cpe:2.3:a:nghttp2:nghttp2:1.9.0
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cpe:2.3:a:nghttp2:nghttp2:1.9.1
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cpe:2.3:a:nghttp2:nghttp2:1.9.2