high
7.5
CWE
400
Advisory Published
Advisory Published
Updated

CVE-2022-41723: Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net

First published: Fri Feb 17 2023(Updated: )

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.

Credit: security@golang.org security@golang.org security@golang.org

Affected SoftwareAffected VersionHow to fix
redhat/openshift-serverless-clients<0:1.8.1-3.el8
0:1.8.1-3.el8
redhat/openshift<0:4.13.0-202304211155.p0.gb404935.assembly.stream.el9
0:4.13.0-202304211155.p0.gb404935.assembly.stream.el9
redhat/etcd<0:3.3.23-14.el8
0:3.3.23-14.el8
redhat/skupper-cli<0:1.4.1-2.el8
0:1.4.1-2.el8
redhat/skupper-cli<0:1.4.1-2.el9
0:1.4.1-2.el9
go/golang.org/x/net<0.7.0
0.7.0
redhat/golang.org/x/net<0.7.0
0.7.0
redhat/golang<1.20.1
1.20.1
redhat/golang<1.19.6
1.19.6
Golang Go<1.19.6
Golang Go=1.20.0
Golang Hpack Go<0.7.0
Golang Http2 Go<0.7.0

Remedy

https://go.dev/cl/468135

Remedy

https://go.dev/cl/468295

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2022-41723?

    CVE-2022-41723 is a vulnerability in golang that allows a maliciously crafted HTTP/2 stream to cause excessive CPU consumption and result in a denial of service.

  • What is the severity of CVE-2022-41723?

    CVE-2022-41723 has a severity rating of 7.5, which is considered high.

  • Which software versions are affected by CVE-2022-41723?

    Openshift Serverless Clients version 1.8.1-3.el8, Openshift version 4.13.0-202304211155.p0.gb404935.assembly.stream.el9, Etcd version 3.3.23-14.el8, Skupper CLI version 1.4.1-2.el8 and 1.4.1-2.el9, Golang Go versions up to 1.19.6, Golang Go version 1.20.0, Golang Hpack version up to 0.7.0, Golang Http2 version up to 0.7.0, Golang.org/x/net version 0.7.0, Golang version 1.20.1, and Golang version 1.19.6 are affected by CVE-2022-41723.

  • How can CVE-2022-41723 be exploited?

    CVE-2022-41723 can be exploited by sending a maliciously crafted HTTP/2 stream to the vulnerable software, causing excessive CPU consumption in the HPACK decoder.

  • Is there a fix available for CVE-2022-41723?

    Yes, the fix for CVE-2022-41723 is available. Please refer to the official references for more information on how to apply the fix.

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