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CVE-2020-15114

Published: 6 August 2020

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.

Priority

Medium

Cvss 3 Severity Score

7.7

Score breakdown

Status

Package Release Status
etcd
Launchpad, Ubuntu, Debian
impish Not vulnerable
(3.3.23)
groovy Ignored
(end of life)
trusty Does not exist

upstream
Released (3.3.23, 3.4.10)
hirsute Ignored
(end of life)
jammy Not vulnerable
(3.3.23)
kinetic Not vulnerable
(3.3.23)
bionic
Released (3.2.17+dfsg-1ubuntu0.1+esm1)
Available with Ubuntu Pro
xenial Needs triage

lunar Not vulnerable
(3.3.23)
focal
Released (3.2.26+dfsg-6ubuntu0.1)
mantic Not vulnerable
(3.3.23)
Patches:
upstream: https://github.com/etcd-io/etcd/commit/f6b822dfe85c9f004c7188496e8573bdaa582260 (3.3.23)

Severity score breakdown

Parameter Value
Base score 7.7
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H