CVE-2022-41723

Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net

Description

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.

7.5

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.23%

Vendor Advisory google.com Vendor Advisory go.dev

Affected: Go standard library net/http

Affected: golang.org/x/net golang.org/x/net/http2

Affected: golang.org/x/net golang.org/x/net/http2/hpack

References

Link	Tags
https://go.dev/issue/57855	issue tracking
https://go.dev/cl/468135	patch
https://go.dev/cl/468295	patch
https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E	mailing list vendor advisory
https://pkg.go.dev/vuln/GO-2023-1571	vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC/	third party advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RLBQ3A7ROLEQXQLXFDLNJ7MYPKG5GULE/	third party advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT/	third party advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XX3IMUTZKRQ73PBZM4E2JP4BKYH4C6XE/	third party advisory
https://www.couchbase.com/alerts/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/
https://security.gentoo.org/glsa/202311-09
https://security.netapp.com/advisory/ntap-20230331-0010/

Frequently Asked Questions

What is the severity of CVE-2022-41723?: CVE-2022-41723 has been scored as a high severity vulnerability.
How to fix CVE-2022-41723?: To fix CVE-2022-41723, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-41723 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-41723 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-41723?: CVE-2022-41723 affects Go standard library net/http, golang.org/x/net golang.org/x/net/http2, golang.org/x/net golang.org/x/net/http2/hpack.