Description
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.
Metrics
CVSS 3.1 7.7/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| etcd-io | etcd | < 3.3.23; < 3.4.10 |
References
- https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
- https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
Timeline
- Published
- Aug 6, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified