{"schema_version":"1.7.3","id":"GHSA-xpw8-rcwv-8f8p","published":"2023-10-10T22:22:54Z","modified":"2026-02-04T03:06:01.437757Z","related":["CGA-xxrj-2jc5-4677","CVE-2023-44487"],"summary":"io.netty:netty-codec-http2 vulnerable to HTTP/2 Rapid Reset Attack","details":"A client might overload the server by issue frequent RST frames. This can cause a massive amount of load on the remote system and so cause a DDOS attack. \n\n### Impact\nThis is a DDOS attack, any http2 server is affected and so you should update as soon as possible.\n\n### Patches\nThis is patched in version 4.1.100.Final.\n\n### Workarounds\nA user can limit the amount of RST frames that are accepted per connection over a timeframe manually using either an own `Http2FrameListener` implementation or an `ChannelInboundHandler` implementation (depending which http2 API is used).\n\n### References\n- https://www.cve.org/CVERecord?id=CVE-2023-44487\n- https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/\n- https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/","affected":[{"package":{"name":"io.netty:netty-codec-http2","ecosystem":"Maven","purl":"pkg:maven/io.netty/netty-codec-http2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.100.Final"}]}],"versions":["4.1.0.Beta4","4.1.0.Beta5","4.1.0.Beta6","4.1.0.Beta7","4.1.0.Beta8","4.1.0.CR1","4.1.0.CR2","4.1.0.CR3","4.1.0.CR4","4.1.0.CR5","4.1.0.CR6","4.1.0.CR7","4.1.0.Final","4.1.1.Final","4.1.10.Final","4.1.11.Final","4.1.12.Final","4.1.13.Final","4.1.14.Final","4.1.15.Final","4.1.16.Final","4.1.17.Final","4.1.18.Final","4.1.19.Final","4.1.2.Final","4.1.20.Final","4.1.21.Final","4.1.22.Final","4.1.23.Final","4.1.24.Final","4.1.25.Final","4.1.26.Final","4.1.27.Final","4.1.28.Final","4.1.29.Final","4.1.3.Final","4.1.30.Final","4.1.31.Final","4.1.32.Final","4.1.33.Final","4.1.34.Final","4.1.35.Final","4.1.36.Final","4.1.37.Final","4.1.38.Final","4.1.39.Final","4.1.4.Final","4.1.40.Final","4.1.41.Final","4.1.42.Final","4.1.43.Final","4.1.44.Final","4.1.45.Final","4.1.46.Final","4.1.47.Final","4.1.48.Final","4.1.49.Final","4.1.5.Final","4.1.50.Final","4.1.51.Final","4.1.52.Final","4.1.53.Final","4.1.54.Final","4.1.55.Final","4.1.56.Final","4.1.57.Final","4.1.58.Final","4.1.59.Final","4.1.6.Final","4.1.60.Final","4.1.61.Final","4.1.62.Final","4.1.63.Final","4.1.64.Final","4.1.65.Final","4.1.66.Final","4.1.67.Final","4.1.68.Final","4.1.69.Final","4.1.7.Final","4.1.70.Final","4.1.71.Final","4.1.72.Final","4.1.73.Final","4.1.74.Final","4.1.75.Final","4.1.76.Final","4.1.77.Final","4.1.78.Final","4.1.79.Final","4.1.8.Final","4.1.80.Final","4.1.81.Final","4.1.82.Final","4.1.83.Final","4.1.84.Final","4.1.85.Final","4.1.86.Final","4.1.87.Final","4.1.88.Final","4.1.89.Final","4.1.9.Final","4.1.90.Final","4.1.91.Final","4.1.92.Final","4.1.93.Final","4.1.94.Final","4.1.95.Final","4.1.96.Final","4.1.97.Final","4.1.98.Final","4.1.99.Final"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-xpw8-rcwv-8f8p/GHSA-xpw8-rcwv-8f8p.json"}}],"references":[{"type":"WEB","url":"https://github.com/apple/swift-nio-http2/security/advisories/GHSA-qppj-fm5r-hxr3"},{"type":"WEB","url":"https://github.com/netty/netty/security/advisories/GHSA-xpw8-rcwv-8f8p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-44487"},{"type":"WEB","url":"https://github.com/netty/netty/commit/58f75f665aa81a8cbcf6ffa74820042a285c5e61"},{"type":"PACKAGE","url":"https://github.com/netty/netty"},{"type":"WEB","url":"https://www.cve.org/CVERecord?id=CVE-2023-44487"}],"database_specific":{"cwe_ids":["CWE-400"],"github_reviewed":true,"github_reviewed_at":"2023-10-10T22:22:54Z","nvd_published_at":null,"severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}