Incomplete Cleanup Affecting nghttp2 package, versions <1.46.0-r1
Snyk CVSS
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Test your applications- Snyk ID SNYK-ALPINE315-NGHTTP2-5788360
- published 20 Jul 2023
- disclosed 13 Jul 2023
Introduced: 13 Jul 2023
CVE-2023-35945 Open this link in a new tabHow to fix?
Upgrade Alpine:3.15 nghttp2 to version 1.46.0-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nghttp2 package and not the nghttp2 package as distributed by Alpine.
See How to fix? for Alpine:3.15 relevant fixed versions and status.
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.