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CVE-2023-39325 Detail

Description

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://go.dev/cl/534215 Vendor Advisory 
https://go.dev/cl/534235 Vendor Advisory 
https://go.dev/issue/63417 Issue Tracking  Vendor Advisory 
https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ Release Notes 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OVW5V2DM5K5IC3H7O42YDUGNJ74J35O/ Mailing List  Third Party Advisory 
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https://pkg.go.dev/vuln/GO-2023-2102 Vendor Advisory 
https://security.gentoo.org/glsa/202311-09 Mailing List  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20231110-0008/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST  

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Change History

22 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-39325
NVD Published Date:
10/11/2023
NVD Last Modified:
04/28/2024
Source:
Go Project