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This CVE record is not being prioritized for NVD enrichment efforts due to resource or other concerns.
Description
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
Metrics
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[{"vendor":"Go standard library","product":"net/http","defaultStatus":"unaffected","collectionURL":"https://pkg.go.dev","packageName":"net/http","programRoutines":[{"name":"http2Framer.readMetaFrame"},{"name":"CanonicalHeaderKey"},{"name":"Client.CloseIdleConnections"},{"name":"Client.Do"},{"name":"Client.Get"},{"name":"Client.Head"},{"name":"Client.Post"},{"name":"Client.PostForm"},{"name":"Cookie.String"},{"name":"Cookie.Valid"},{"name":"Dir.Open"},{"name":"Error"},{"name":"Get"},{"name":"HandlerFunc.ServeHTTP"},{"name":"Head"},{"name":"Header.Add"},{"name":"Header.Del"},{"name":"Header.Get"},{"name":"Header.Set"},{"name":"Header.Values"},{"name":"Header.Write"},{"name":"Header.WriteSubset"},{"name":"ListenAndServe"},{"name":"ListenAndServeTLS"},{"name":"NewRequest"},{"name":"NewRequestWithContext"},{"name":"NotFound"},{"name":"ParseTime"},{"name":"Post"},{"name":"PostForm"},{"name":"ProxyFromEnvironment"},{"name":"ReadRequest"},{"name":"ReadResponse"},{"name":"Redirect"},{"name":"Request.AddCookie"},{"name":"Request.BasicAuth"},{"name":"Request.FormFile"},{"name":"Request.FormValue"},{"name":"Request.MultipartReader"},{"name":"Request.ParseForm"},{"name":"Request.ParseMultipartForm"},{"name":"Request.PostFormValue"},{"name":"Request.Referer"},{"name":"Request.SetBasicAuth"},{"name":"Request.UserAgent"},{"name":"Request.Write"},{"name":"Request.WriteProxy"},{"name":"Response.Cookies"},{"name":"Response.Location"},{"name":"Response.Write"},{"name":"ResponseController.EnableFullDuplex"},{"name":"ResponseController.Flush"},{"name":"ResponseController.Hijack"},{"name":"ResponseController.SetReadDeadline"},{"name":"ResponseController.SetWriteDeadline"},{"name":"Serve"},{"name":"ServeContent"},{"name":"ServeFile"},{"name":"ServeMux.ServeHTTP"},{"name":"ServeTLS"},{"name":"Server.Close"},{"name":"Server.ListenAndServe"},{"name":"Server.ListenAndServeTLS"},{"name":"Server.Serve"},{"name":"Server.ServeTLS"},{"name":"Server.SetKeepAlivesEnabled"},{"name":"Server.Shutdown"},{"name":"SetCookie"},{"name":"Transport.CancelRe
Go Project http://www.openwall.com/lists/oss-security/2024/04/03/16 [No types assigned]
CVE Modified by Go Project5/01/2024 1:15:25 PM
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Go Project http://www.openwall.com/lists/oss-security/2024/04/05/4 [No types assigned]
CVE Modified by Go Project4/25/2024 2:15:52 AM
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Reference
Go Project https://lists.fedoraproject.org/archives/list/[email protected]/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT/ [No types assigned]
CVE Modified by Go Project4/19/2024 3:15:08 AM
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Go Project https://security.netapp.com/advisory/ntap-20240419-0009/ [No types assigned]
New CVE Received from Go Project4/04/2024 5:15:16 PM
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Description
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
Added
Reference
Go Project https://go.dev/cl/576155 [No types assigned]
Added
Reference
Go Project https://go.dev/issue/65051 [No types assigned]
Added
Reference
Go Project https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M [No types assigned]
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Reference
Go Project https://pkg.go.dev/vuln/GO-2024-2687 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2023-45288 NVD
Published Date: 04/04/2024 NVD
Last Modified: 06/17/2026
Source: Go Project