Description (CNA)
The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status. This mishandling could leave a client connection in an invalid state, where the next request sent on the connection will fail. An attacker sending a request to a net/http/httputil.ReverseProxy proxy can exploit this mishandling to cause a denial of service by sending "Expect: 100-continue" requests which elicit a non-informational response from the backend. Each such request leaves the proxy with an invalid connection, and causes one subsequent request using that connection to fail.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Go standard library / net/http | affected 0 before 1.21.12; affected 1.22.0-0 before 1.22.5 |
CWE
No CWE identifiers supplied.
References
- https://go.dev/cl/591255
- https://go.dev/issue/67555
- https://groups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJ
- https://pkg.go.dev/vuln/GO-2024-2963
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.