GO-2023-1495

vendorUSosv

Request smuggling due to improper request handling in golang.org/x/net/http2/h2c

view advisory published 2023-01-13Licence: per source

A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read HTTP2 frames from the connection, it will instead be reading the body of the HTTP request, which could be attacker-manipulated to represent arbitrary HTTP2 requests.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2022-41721US	high7.5	1.82% (79th)	—	2023-01-13
A request smuggling attack is possible when using MaxBytesHandler. When using MaxBytesHandler, the body of an HTTP request is not fully consumed. When the server attempts to read H…

references

External citations — patches, advisories, analysis.

https://go.dev/cl/447396FIX
https://go.dev/issue/56352REPORT

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