Description
net/http in Go before 1.15.12 and 1.16.x before 1.16.4 allows remote attackers to cause a denial of service (panic) via a large header to ReadRequest or ReadResponse. Server, Transport, and Client can each be affected in some configurations.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | golang-golang-x-net | 1:0.0+git20210119.5f4716e+dfsg-3 | — |
| Debian 13 | golang-golang-x-net | 1:0.0+git20210119.5f4716e+dfsg-3 | — |
| Debian 12 | golang-golang-x-net | 1:0.0+git20210119.5f4716e+dfsg-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | golang-1.16 +1 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | golang-1.16 +1 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | google-guest-agent +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | delve | 1.5.0-2.module+el8.4.0+8864+58b0fcdb | RHSA-2021:3076 |
| RHEL 8 | golang +7 | 1.15.14-1.module+el8.4.0+11833+614b07b8 | RHSA-2021:3076 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Serverless 1 | openshift-serverless-clients | 0.22.0-3.el8 | RHSA-2021:3555, RHSA-2021:2704 |
| Red Hat OpenStack 16 | etcd | 3.3.23-3.1.el8ost.1 | RHSA-2021:5072, RHSA-2021:3487 |
| Red Hat OpenShift 4 | atomic-openshift-service-idler | 4.7.0-202107291238.p0.git.39cfc66.assembly.stream.el8 | RHBA-2021:2979 |
| Red Hat OpenShift 4 | containernetworking-plugins | 0.8.6-3.rhaos4.6.el7 | RHSA-2021:3248 |
| Red Hat OpenShift 4 | cri-o | 1.20.4-7.rhaos4.7.git6287500.el7 | RHSA-2021:2984, RHBA-2021:2979 |
| Red Hat OpenShift 4 | cri-tools | 1.21.0-3.el8 | RHSA-2021:3248 |
| Red Hat OpenShift 4 | ignition +1 | 2.9.0-4.rhaos4.7.git1d56dc8.el8 | RHSA-2021:2984, RHBA-2021:2979 |
| Red Hat OpenShift 4 | openshift +1 | 4.7.0-202107292242.p0.git.558d959.assembly.stream.el7 | RHSA-2021:2984, RHBA-2021:2979 |
| Red Hat OpenShift 4 | openshift-clients +1 | 4.7.0-202107292242.p0.git.8b4b094.assembly.stream.el7 | RHSA-2021:2984, RHBA-2021:2979 |
| Red Hat OpenShift 4 | prometheus-promu +1 | 0.5.0-4.git642a960.el8 | RHSA-2021:3248 |
| Red Hat OpenShift 4 | redhat-release-coreos | 47.84-1.el8 | RHBA-2021:2979 |
| Red Hat Gluster Storage 3 | heketi +2 | 10.4.0-2.el7rhgs | RHSA-2022:0308 |
| Red Hat Container Native Virtualization 4 | kubevirt +2 | 4.9.0-287.el7 | RHSA-2021:4103 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | delve | 1.5.0-2.module+el8.4.0+396+d2d16ae3 | RLSA-2021:3076 |
| Rocky Linux 8 | golang +1 | 1.15.14-1.module+el8.4.0+632+4dba2916 | RLSA-2021:3076 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | go1.15 | 1.15.12-1.30.1 | SUSE-SU-2021:2082-1 |
| SLES 15 SP3 | go1.16 | 1.16.4-1.14.2 | SUSE-SU-2021:2085-1 |
| SLES 15 SP2 | go1.15 | 1.15.12-1.30.1 | SUSE-SU-2021:2082-1 |
| SLES 15 SP2 | go1.16 | 1.16.4-1.14.2 | SUSE-SU-2021:2085-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | go1.15 | 1.15.15-1.2 | openSUSE-SU-2024:10808-1 |
| openSUSE Tumbleweed | go1.16 | 1.16.8-1.1 | openSUSE-SU-2024:10809-1 |
| openSUSE Leap 15.2 | go1.15 | 1.15.12-lp152.17.1 | openSUSE-SU-2021:0904-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | go | 1.16.4-r0 | — |
| Alpine v3.23 | go | 1.16.4-r0 | — |
| Alpine v3.22 | go | 1.16.4-r0 | — |
| Alpine v3.21 | go | 1.16.4-r0 | — |
| Alpine v3.20 | go | 1.16.4-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | go | 1.16.4-r0 | — |
| Alpine v3.18 | go | 1.16.4-r0 | — |
| Alpine v3.17 | go | 1.16.4-r0 | — |
| Alpine v3.16 | go | 1.16.4-r0 | — |
| Alpine v3.15 | go | 1.16.4-r0 | — |
| Alpine v3.14 | go | 1.16.4-r0 | — |
| Alpine v3.13 | go | 1.15.12-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | golang +6 | 1.15.12-1.amzn2.0.1 | ALAS2-2021-1657 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | delve | 1.5.0-2.0.1.module+el8.4.0+20021+8a86d991 | ELSA-2021-3076 |
| Oracle Linux 8 | golang +7 | 1.15.14-1.module+el8.4.0+20290+7af514f4 | ELSA-2021-3076 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | grpcurl | 1.8.7-r7 | — |
| Wolfi rolling | hey | 0.1.4-r3 | — |
| Wolfi rolling | k3d +2 | 5.6.0-r11 | — |
| Wolfi rolling | terraform-provider-sendgrid | 1.0.1-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | golang.org/x/net | < 0.0.0-20210428140749-89ef3d95e781 | 0.0.0-20210428140749-89ef3d95e781 | GHSA-h86h-8ppg-mxmh |
| Go | stdlib | < 1.15.12 · >= 1.16.0-0, < 1.16.4 | 1.15.12, 1.16.4 | GO-2022-0236 |
Advisories 20
- RHSA-2022:0308 Red Hat Security Advisory: OpenShift Container Storage 3.11.z security and bug fix update Red Hat Security Advisories (RHSA) · Aug 8, 2026
- RHSA-2021:4103 Red Hat Security Advisory: OpenShift Virtualization 4.9.0 RPMs security and bug fix update Red Hat Security Advisories (RHSA) · Aug 8, 2026
- RHSA-2021:5072 Red Hat Security Advisory: Red Hat OpenStack Platform 16.1 (etcd) security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2021:3555 Red Hat Security Advisory: Release of OpenShift Serverless Client kn 1.17.0 Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2021:3487 Red Hat Security Advisory: Red Hat OpenStack Platform 16.2 (etcd) security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2021:3248 Red Hat Security Advisory: OpenShift Container Platform 4.8.9 packages and security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2021:2984 Red Hat Security Advisory: OpenShift Container Platform 4.8.4 bug fix and security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHBA-2021:2979 Red Hat Bug Fix Advisory: OpenShift Container Platform 4.7.23 packages update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2021:3076 Red Hat Security Advisory: go-toolset:rhel8 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:2704 Red Hat Security Advisory: Release of OpenShift Serverless Client kn 1.16.0 Red Hat Security Advisories (RHSA) · Jun 29, 2026
- WID-SEC-2022-0510 IBM DB2: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2026
- RLSA-2021:3076 Moderate: go-toolset:rhel8 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:10809-1 go1.16-1.16.8-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2082-1 Security update for go1.15 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2085-1 Security update for go1.16 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0904-1 Security update for go1.15 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10808-1 go1.15-1.15.15-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2229 Splunk Splunk Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- ELSA-2021-3076 Moderate: go-toolset:ol8 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 12, 2021
- ALAS2-2021-1657 Moderate: golang security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 22, 2021
References
- https://groups.google.com/g/golang-announce/c/cu9SP4eSXMc
- https://github.com/golang/go/issues/45710
- FEDORA-2021-ee3c072cd0 vendor-advisory
- GLSA-202208-02 vendor-advisory