Red Hat: CVE-2022-21698: Denial of service using InstrumentHandlerCounter (Multiple Advisories)
Description
client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`; not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`. client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods.
Solution(s)
- redhat-upgrade-aardvark-dns
- redhat-upgrade-buildah
- redhat-upgrade-buildah-debuginfo
- redhat-upgrade-buildah-debugsource
- redhat-upgrade-buildah-tests
- redhat-upgrade-buildah-tests-debuginfo
- redhat-upgrade-cockpit-podman
- redhat-upgrade-conmon
- redhat-upgrade-conmon-debuginfo
- redhat-upgrade-conmon-debugsource
- redhat-upgrade-container-selinux
- redhat-upgrade-containernetworking-plugins
- redhat-upgrade-containernetworking-plugins-debuginfo
- redhat-upgrade-containernetworking-plugins-debugsource
- redhat-upgrade-containers-common
- redhat-upgrade-crit
- redhat-upgrade-criu
- redhat-upgrade-criu-debuginfo
- redhat-upgrade-criu-debugsource
- redhat-upgrade-criu-devel
- redhat-upgrade-criu-libs
- redhat-upgrade-criu-libs-debuginfo
- redhat-upgrade-crun
- redhat-upgrade-crun-debuginfo
- redhat-upgrade-crun-debugsource
- redhat-upgrade-fuse-overlayfs
- redhat-upgrade-fuse-overlayfs-debuginfo
- redhat-upgrade-fuse-overlayfs-debugsource
- redhat-upgrade-grafana
- redhat-upgrade-grafana-debuginfo
- redhat-upgrade-libslirp
- redhat-upgrade-libslirp-debuginfo
- redhat-upgrade-libslirp-debugsource
- redhat-upgrade-libslirp-devel
- redhat-upgrade-netavark
- redhat-upgrade-oci-seccomp-bpf-hook
- redhat-upgrade-oci-seccomp-bpf-hook-debuginfo
- redhat-upgrade-oci-seccomp-bpf-hook-debugsource
- redhat-upgrade-podman
- redhat-upgrade-podman-catatonit
- redhat-upgrade-podman-catatonit-debuginfo
- redhat-upgrade-podman-debuginfo
- redhat-upgrade-podman-debugsource
- redhat-upgrade-podman-docker
- redhat-upgrade-podman-gvproxy
- redhat-upgrade-podman-gvproxy-debuginfo
- redhat-upgrade-podman-plugins
- redhat-upgrade-podman-plugins-debuginfo
- redhat-upgrade-podman-remote
- redhat-upgrade-podman-remote-debuginfo
- redhat-upgrade-podman-tests
- redhat-upgrade-python3-criu
- redhat-upgrade-python3-podman
- redhat-upgrade-runc
- redhat-upgrade-runc-debuginfo
- redhat-upgrade-runc-debugsource
- redhat-upgrade-skopeo
- redhat-upgrade-skopeo-debuginfo
- redhat-upgrade-skopeo-debugsource
- redhat-upgrade-skopeo-tests
- redhat-upgrade-slirp4netns
- redhat-upgrade-slirp4netns-debuginfo
- redhat-upgrade-slirp4netns-debugsource
- redhat-upgrade-toolbox
- redhat-upgrade-toolbox-debuginfo
- redhat-upgrade-toolbox-debugsource
- redhat-upgrade-toolbox-tests
- redhat-upgrade-udica
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.
– Scott Cheney, Manager of Information Security, Sierra View Medical Center