# CVE-2022-27664: golang.org/x/net/http2 Denial of Service vulnerability > Attackers can cause a denial of service in Go applications by triggering a hang during HTTP/2 connection closure when a fatal error occurs. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 6 Sep 2022 - **Updated:** 3 Aug 2024 - **Also known as:** ALSA-2023:2177, ALSA-2023:2785, AZL-10855, AZL-31963, AZL-37328, AZL-52863, AZL-79106, AZL-98982, BIT-golang-2022-27664, CLEANSTART-2024-OB04829, CLEANSTART-2026-MM61448, CLEANSTART-2026-PD56220, DEBIAN-CVE-2022-27664, GHSA-69cg-p879-7622, GO-2022-0969, MINI-3f7v-jq58-x543, OESA-2022-1939, RHBA-2023:0564, RHSA-2023:2177, RHSA-2023:2785, RHSA-2023:4674, RHSA-2023:4734, RLSA-2023:2177, SUSE-SU-2022:3325-1, UBUNTU-CVE-2022-27664, openSUSE-SU-2024:12309-1, openSUSE-SU-2024:12600-1, openSUSE-SU-2024:13239-1, openSUSE-SU-2024:14121-1 ## What is CVE-2022-27664? CVE-2022-27664 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 6 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error. ## Which versions are affected by CVE-2022-27664? 7 open source packages ship an affected version, including golang.org/x/net, golang and golang.org/x/net/http2. It affects 2 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `golang.org/x/net` | Go | All versions | 0.0.0-20220906165146-f3363e06e74c | | `golang.org/x/net` | Go | All versions | 0.0.0-20220906165146-f3363e06e74c | | `golang.org/x/net` | Go | All versions | 0.0.0-20220906165146-f3363e06e74c | | `golang` | Bitnami | All versions | 1.18.6, 1.19.1 | | `golang.org/x/net/http2` | Go | All versions | 0.0.0-20220906165146-f3363e06e74c | | `golang.org/x/net/http2` | Go | All versions | 0.0.0-20220906165146-f3363e06e74c | | `stdlib` | Go | All versions | 1.18.6, 1.19.1 | | `grafana-pcp` | AlmaLinux:8 | All versions | 3.2.0-3.el8 | | `grafana-pcp` | AlmaLinux:9 | All versions | 5.1.1-1.el9 | | `grafana-pcp` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.2.0-3.el8 | | `grafana-pcp-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.2.0-3.el8 | | `grafana-pcp` | Red Hat:enterprise_linux:9::appstream | All versions | 0:5.1.1-1.el9 | | `grafana-pcp-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 0:5.1.1-1.el9 | | `grafana-pcp-debugsource` | Red Hat:enterprise_linux:9::appstream | All versions | 0:5.1.1-1.el9 | | `cri-o` | Red Hat:openshift:4.11::el8 | All versions | 0:1.24.4-5.rhaos4.11.git57d7127.el8 | | `cri-o-debuginfo` | Red Hat:openshift:4.11::el8 | All versions | 0:1.24.4-5.rhaos4.11.git57d7127.el8 | | `cri-o-debugsource` | Red Hat:openshift:4.11::el8 | All versions | 0:1.24.4-5.rhaos4.11.git57d7127.el8 | | `openshift-clients` | Red Hat:openshift:4.12::el8 | All versions | 0:4.12.0-202308151125.p0.gf61957e.assembly.stream.el8 | | `openshift-clients-redistributable` | Red Hat:openshift:4.12::el8 | All versions | 0:4.12.0-202308151125.p0.gf61957e.assembly.stream.el8 | | `openshift-clients` | Red Hat:openshift:4.12::el9 | All versions | 0:4.12.0-202308151125.p0.gf61957e.assembly.stream.el9 | | `openshift-clients-redistributable` | Red Hat:openshift:4.12::el9 | All versions | 0:4.12.0-202308151125.p0.gf61957e.assembly.stream.el9 | | `openshift-clients` | Red Hat:openshift:4.13::el8 | All versions | 0:4.13.0-202308112024.p0.g17b7acc.assembly.stream.el8 | | `openshift-clients-redistributable` | Red Hat:openshift:4.13::el8 | All versions | 0:4.13.0-202308112024.p0.g17b7acc.assembly.stream.el8 | | `openshift-clients` | Red Hat:openshift:4.13::el9 | All versions | 0:4.13.0-202308112024.p0.g17b7acc.assembly.stream.el9 | | `openshift-clients-redistributable` | Red Hat:openshift:4.13::el9 | All versions | 0:4.13.0-202308112024.p0.g17b7acc.assembly.stream.el9 | | `grafana-pcp` | Rocky Linux:9 | All versions | 0:5.1.1-14.el9_7 | | `go1.18` | SUSE:Linux Enterprise Module for Development Tools 15 SP3 | All versions | 1.18.6-150000.1.31.1 | | `go1.18` | SUSE:Linux Enterprise Module for Development Tools 15 SP4 | All versions | 1.18.6-150000.1.31.1 | | `go1.18` | openSUSE:Leap 15.3 | All versions | 1.18.6-150000.1.31.1 | | `go1.18` | openSUSE:Leap 15.4 | All versions | 1.18.6-150000.1.31.1 | | `cadvisor` | openSUSE:Tumbleweed | All versions | 0.49.1-1.1 | | `docker-compose` | openSUSE:Tumbleweed | All versions | 2.15.1-1.1 | | `go1.18` | openSUSE:Tumbleweed | All versions | 1.18.6-1.1 | Products: Fedoraproject Fedora, Golang Go. ## How do I fix CVE-2022-27664? Upgrade golang.org/x/net to 0.0.0-20220906165146-f3363e06e74c or later. ## Is CVE-2022-27664 being exploited? There is no known exploitation of CVE-2022-27664 in the wild and no public exploit code. ## Other vulnerabilities in Fedoraproject Fedora - [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild) - [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild) - [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild) - [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild) - [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2022-27664 and fix it if it is affected. What it is: CVE-2022-27664 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 6 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2022-27664 in the wild and no public exploit code. Affected packages and fixed versions: - golang.org/x/net (Go): affected all versions; fixed in 0.0.0-20220906165146-f3363e06e74c - golang.org/x/net (Go): affected all versions; fixed in 0.0.0-20220906165146-f3363e06e74c - golang.org/x/net (Go): affected all versions; fixed in 0.0.0-20220906165146-f3363e06e74c - golang (Bitnami): affected all versions; fixed in 1.18.6, 1.19.1 - golang.org/x/net/http2 (Go): affected all versions; fixed in 0.0.0-20220906165146-f3363e06e74c - golang.org/x/net/http2 (Go): affected all versions; fixed in 0.0.0-20220906165146-f3363e06e74c - stdlib (Go): affected all versions; fixed in 1.18.6, 1.19.1 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2022-27664/ (Markdown: https://insights.sbomify.com/CVE-2022-27664/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2022-27664 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-27664 - OSV: https://osv.dev/vulnerability/CVE-2022-27664 --- From sbomify Insights: https://insights.sbomify.com/CVE-2022-27664/ Summaries are generated and may contain mistakes; the official description above is the record.