CVE-2022-41723

Publication date 28 February 2023

Last updated 7 October 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
golang-golang-x-net 26.10 stonking
Not affected
26.04 LTS resolute
Not affected
25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed in 1:0.0+git20211209.491a49a+dfsg-1ubuntu0.1
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
google-guest-agent 26.10 stonking
Fixed in 20230426.00-0ubuntu2
26.04 LTS resolute
Fixed in 20230426.00-0ubuntu2
25.10 questing
Fixed in 20230426.00-0ubuntu2
25.04 plucky
Fixed in 20230426.00-0ubuntu2
24.10 oracular
Fixed in 20230426.00-0ubuntu2
24.04 LTS noble
Fixed in 20230426.00-0ubuntu2
23.10 mantic
Fixed in 20230426.00-0ubuntu2
23.04 lunar Ignored end of life, was needed
22.10 kinetic Ignored end of life, was needed
22.04 LTS jammy
Fixed in 20231004.02-0ubuntu1~22.04.3
20.04 LTS focal
Fixed in 20231004.02-0ubuntu1~20.04.3
18.04 LTS bionic
Fixed in 20230426.00-0ubuntu1~18.04.0
16.04 LTS xenial
Fixed in 20230426.00-0ubuntu2~16.04.0
14.04 LTS trusty Not in release
containerd 26.10 stonking
Not affected
26.04 LTS resolute
Not affected
25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
golang 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Ignored end of standard support
golang-1.6 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Ignored end of standard support
golang-1.8 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Vulnerable
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.9 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Vulnerable
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.10 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty
Vulnerable
golang-1.13 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy
Vulnerable
20.04 LTS focal
Vulnerable
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Not in release
golang-1.14 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Vulnerable
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.16 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Vulnerable
18.04 LTS bionic
Vulnerable
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.17 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy
Fixed in 1.17.13-3ubuntu1.3
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.18 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy
Fixed in 1.18.1-1ubuntu1.2
20.04 LTS focal
Fixed in 1.18.1-1ubuntu1~20.04.3
18.04 LTS bionic
Fixed in 1.18.1-1ubuntu1~18.04.4+esm1
16.04 LTS xenial
Fixed in 1.18.1-1ubuntu1~16.04.6+esm1
14.04 LTS trusty Not in release
golang-1.19 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.20 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic
Not affected
23.04 lunar
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
golang-1.21 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
adsys 26.10 stonking
Not affected
26.04 LTS resolute
Not affected
25.10 questing
Not affected
24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed in 0.9.2~20.04.2ubuntu0.1+esm1
golang-golang-x-net-dev 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed in 1:0.0+git20190811.74dc4d7+dfsg-1ubuntu0.1~esm2
18.04 LTS bionic
Fixed in 1:0.0+git20170629.c81e7f2+dfsg-2ubuntu0.1~esm2
16.04 LTS xenial
Fixed in 1:0.0+git20160110.4fd4a9f-1ubuntu0.1~esm2
juju-core 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
16.04 LTS xenial
Fixed in 2.3.7-0ubuntu0.16.04.1+esm2
lxd 26.10 stonking Not in release
26.04 LTS resolute Not in release
25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic
Fixed in 3.0.3-0ubuntu1~18.04.2+esm2
16.04 LTS xenial
Fixed in 2.0.11-0ubuntu1~16.04.4+esm2

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Notes

alexmurray

google-guest-agent contains a vendored copy of golang-golang-x-net

mdeslaur

containerd does not listen on an HTTP/2 endpoint, so not vulnerable. This is fixed in the 20230426.00-0ubuntu packages currently in the -updates pocket, but is not yet fixed in -security

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
golang-1.21

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-8089-2
    • Go Networking vulnerabilities
    • 31 March 2026
    • USN-8089-1
    • Go Networking vulnerabilities
    • 12 March 2026
    • USN-8089-3
    • ADSys, Juju Core, LXD vulnerabilities
    • 7 April 2026
    • USN-8900-1
    • Go Networking vulnerabilities
    • 7 October 2026

Other references

Access our resources on patching vulnerabilities