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Microsoft Security Response CenterCVE-2023-45288

HTTP/2 CONTINUATION flood in net/http

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.

7.5CVSS out of 10High severity
Scope

What the vendor says is affected

  • azl3 application-gateway-kubernetes-ingress 1.7.2-3 on Azure Linux 3.0
  • azl3 etcd 3.5.12-2 on Azure Linux 3.0
  • azl3 docker-cli 25.0.3-3 on Azure Linux 3.0
  • azl3 containerd 1.7.13-8 on Azure Linux 3.0
  • azl3 telegraf 1.29.4-1 on Azure Linux 3.0
  • azl3 prometheus-node-exporter 1.7.0-3 on Azure Linux 3.0
  • azl3 cert-manager 1.11.2-8 on Azure Linux 3.0
  • azl3 moby-containerd-cc 1.7.7-9 on Azure Linux 3.0
  • azl3 docker-compose 2.24.6-2 on Azure Linux 3.0
  • azl3 git-lfs 3.4.1-1 on Azure Linux 3.0
  • azl3 flannel 0.24.2-14 on Azure Linux 3.0
  • azl3 containerized-data-importer 1.57.0-14 on Azure Linux 3.0
  • azl3 prometheus-adapter 0.11.2-1 on Azure Linux 3.0
  • azl3 kubevirt 1.2.0-17 on Azure Linux 3.0
  • azl3 moby-engine 25.0.3-13 on Azure Linux 3.0
  • azl3 influxdb 2.7.5-5 on Azure Linux 3.0
  • azl3 cri-tools 1.29.0-1 on Azure Linux 3.0
  • azl3 helm 3.13.2-3 on Azure Linux 3.0
  • cbl2 packer 1.9.5-5 on CBL Mariner 2.0
  • cbl2 kata-containers-cc 3.2.0.azl2-6 on CBL Mariner 2.0
  • cbl2 moby-containerd 1.6.26-11 on CBL Mariner 2.0
  • cbl2 moby-engine 24.0.9-16 on CBL Mariner 2.0
  • cbl2 kubevirt 0.59.0-28 on CBL Mariner 2.0
  • cbl2 moby-containerd-cc 1.7.7-11 on CBL Mariner 2.0

Versions the vendor lists as fixed

  • 1.7.7-1
  • 3.5.18-1
  • 25.0.7-1
  • 1.7.13-6
  • 1.31.0-1
  • 1.7.0-2
  • 1.12.12-1
  • 1.7.7-6
  • 2.27.0-1
  • 3.6.1-1
  • 0.24.2-10
  • 1.57.0-11
  • 0.12.0-1
  • 1.2.0-13
  • 25.0.3-10
  • 2.7.3-6
  • 1.30.1-1
  • 3.15.2-1
  • 1.10.1-2
  • 3.2.0.azl2-1
  • 1.6.26-5
  • 24.0.9-2
  • 0.59.0-16
  • 1.7.7-4
Next step

What the vendor recommends

CBL-Mariner Releases

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory