GHSA-xpw8-rcwv-8f8p
io.netty:netty-codec-http2 vulnerable to HTTP/2 Rapid Reset Attack
Description
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.
Impact
This is a DDOS attack, any http2 server is affected and so you should update as soon as possible.
Patches
This is patched in version 4.1.100.Final.
Workarounds
A 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).
References
- https://www.cve.org/CVERecord?id=CVE-2023-44487
- https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/
- https://cloud.google.com/blog/products/identity-security/google-cloud-mitigated-largest-ddos-attack-peaking-above-398-million-rps/
Base CVSS
7.5
EPSS Score
0%
Introduced Version
4.1.0.CR1
Fix Available
4.1.100.Final
Available Patches
Package
CVEs Fixed
Lines of Code Changed