# CVE-2021-44716: google-guest-agent: net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolledmemory consumption in the header canonicali...

CVE-2021-44716 is fixed in 13 products on 1 platform, first by RHSA-2021:5160, released December 15, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-44716
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0425
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 15, 2021

## Description

net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolledmemory consumption in the header canonicalization cache via HTTP/2requests.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | delve RHEL 8 | 0:1.6.0-1.module+el8.5.0+10379+d6b83bd0 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | delve almalinux 8 | 1.6.0-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | delve ol 8 | 0:1.6.0-1.0.1.module+el8.5.0+20332+2a8a7cc5 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | delve rocky 8 | 0:1.6.0-1.module+el8.5.0+694+f77f0bfd | [RLSA-2021:5160](https://patchblox.com/security/data/fix/linux/rlsa-2021-5160.md) | Dec 15, 2021 |
| Linux | go-toolset RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | go-toolset almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | go-toolset ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | go-toolset rocky 8 | 0:1.16.12-1.module+el8.5.0+720+c057d5cf | [RLSA-2021:5160](https://patchblox.com/security/data/fix/linux/rlsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | golang rocky 8 | 0:1.16.12-1.module+el8.5.0+720+c057d5cf | [RLSA-2021:5160](https://patchblox.com/security/data/fix/linux/rlsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-bin RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-bin almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-bin amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-bin ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | golang-docs RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-docs almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-docs amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-docs ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | golang-golang-x-net Debian 12.15 (bookworm) | 1:0.0+git20211209.491a49a+dfsg-1 | [DEBIAN-CVE-2021-44716](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44716.md) | Jan 1, 2022 |
| Linux | golang-golang-x-net Debian 13.5 (trixie) | 1:0.0+git20211209.491a49a+dfsg-1 | [DEBIAN-CVE-2021-44716](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44716.md) | Jan 1, 2022 |
| Linux | golang-golang-x-net Debian 14 | 1:0.0+git20211209.491a49a+dfsg-1 | [DEBIAN-CVE-2021-44716](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44716.md) | Jan 1, 2022 |
| Linux | golang-misc RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-misc almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-misc amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-misc ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | golang-race RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-race almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-race amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-race ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | golang-shared amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-src RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-src almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-src amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-src ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | golang-tests RHEL 8 | 0:1.16.12-1.module+el8.5.0+13637+960c7771 | [RHSA-2021:5160](https://patchblox.com/security/data/fix/linux/rhsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-tests almalinux 8 | 1.16.12-1.module_el8.5.0+2604+960c7771 | [ALSA-2021:5160](https://patchblox.com/security/data/fix/linux/alsa-2021-5160.md) | Dec 15, 2021 |
| Linux | golang-tests amzn 2023 | 1.19.3-2.amzn2023.0.2 | [ALAS2023-2023-048](https://patchblox.com/security/data/fix/linux/alas2023-2023-048.md) | Feb 17, 2023 |
| Linux | golang-tests ol 8 | 0:1.16.12-1.module+el8.5.0+20456+eee863d9 | [ELSA-2021-5160](https://patchblox.com/security/data/fix/linux/elsa-2021-5160.md) | Dec 16, 2021 |
| Linux | google-guest-agent Ubuntu 20.04 LTS (focal) | 20231004.02-0ubuntu1~20.04.3 | [google-guest-agent 20231004.02-0ubuntu1~20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-google-guest-agent-20231004.02-0ubuntu1-20.04.3.md) | Feb 28, 2023 |
| Linux | google-guest-agent Ubuntu 22.04.1 LTS (jammy) | 20231004.02-0ubuntu1~22.04.3 | [google-guest-agent 20231004.02-0ubuntu1~22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-google-guest-agent-20231004.02-0ubuntu1-22.04.3.md) | Feb 28, 2023 |
| Linux | google-guest-agent Ubuntu 24.10 (oracular) | 20230426.00-0ubuntu2 | [google-guest-agent 20230426.00-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-google-guest-agent-20230426.00-0ubuntu2.md) | Jan 16, 2026 |
| Linux | google-guest-agent Ubuntu 25.04 (plucky) | 20230426.00-0ubuntu2 | [google-guest-agent 20230426.00-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-google-guest-agent-20230426.00-0ubuntu2.md) | Jan 16, 2026 |
| Linux | grafana RHEL 8 | 0:7.5.9-5.el8_5 | [RHSA-2022:0001](https://patchblox.com/security/data/fix/linux/rhsa-2022-0001.md) | Jan 3, 2022 |
| Linux | grafana almalinux 8 | 7.5.9-5.el8_5 | [ALSA-2022:0001](https://patchblox.com/security/data/fix/linux/alsa-2022-0001.md) | Jan 3, 2022 |
| Linux | grafana ol 8 | 0:7.5.9-5.el8_5 | [ELSA-2022-0001](https://patchblox.com/security/data/fix/linux/elsa-2022-0001.md) | Jan 4, 2022 |
| Linux | grafana rocky 8 | 0:7.5.9-5.el8_5 | [RLSA-2022:0001](https://patchblox.com/security/data/fix/linux/rlsa-2022-0001.md) | Jan 3, 2022 |

---

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