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Oracle Linux: (CVE-2022-21698) ELSA-2022-1762: container-tools:ol8 security, bug fix, and enhancement update

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Oracle Linux: (CVE-2022-21698) ELSA-2022-1762: container-tools:ol8 security, bug fix, and enhancement update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
02/15/2022
Created
05/20/2022
Added
05/18/2022
Modified
05/18/2022

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)

  • oracle-linux-upgrade-aardvark-dns
  • oracle-linux-upgrade-buildah
  • oracle-linux-upgrade-buildah-tests
  • oracle-linux-upgrade-cockpit-podman
  • oracle-linux-upgrade-conmon
  • oracle-linux-upgrade-container-selinux
  • oracle-linux-upgrade-containernetworking-plugins
  • oracle-linux-upgrade-containers-common
  • oracle-linux-upgrade-crit
  • oracle-linux-upgrade-criu
  • oracle-linux-upgrade-criu-devel
  • oracle-linux-upgrade-criu-libs
  • oracle-linux-upgrade-crun
  • oracle-linux-upgrade-fuse-overlayfs
  • oracle-linux-upgrade-libslirp
  • oracle-linux-upgrade-libslirp-devel
  • oracle-linux-upgrade-netavark
  • oracle-linux-upgrade-oci-seccomp-bpf-hook
  • oracle-linux-upgrade-podman
  • oracle-linux-upgrade-podman-catatonit
  • oracle-linux-upgrade-podman-docker
  • oracle-linux-upgrade-podman-gvproxy
  • oracle-linux-upgrade-podman-plugins
  • oracle-linux-upgrade-podman-remote
  • oracle-linux-upgrade-podman-tests
  • oracle-linux-upgrade-python-podman
  • oracle-linux-upgrade-python3-criu
  • oracle-linux-upgrade-python3-podman
  • oracle-linux-upgrade-runc
  • oracle-linux-upgrade-skopeo
  • oracle-linux-upgrade-skopeo-tests
  • oracle-linux-upgrade-slirp4netns
  • oracle-linux-upgrade-udica

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