In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint can become stuck in a loop of requesting itself until there are no more available file descriptors to accept connections on the gateway.
CVSS Details
- CVSS 3.1 Base Score: 7.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade etcd | Jul 30, 2024 | Aug 6, 2020 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Aug 6, 2020 |
| Ubuntu | — | Upgrade etcd-clientUpgrade etcd-client (Ubuntu Pro)Upgrade etcd-serverUpgrade etcd-server (Ubuntu Pro)Upgrade etcdUpgrade etcd (Ubuntu Pro) | Sep 23, 2022 | Aug 6, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Aug 6, 2020 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub