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CVE-2020-15114

Denial of Service in etcd

HIGH
7.7
CVSS Score
Published: August 6, 2020 at 10:25 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
3 products affected across 3 vendorsFedoraEtcdEtcd

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Severity
HIGH7.7
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora· Fedora Projectrpm
95%
32
Etcd· Red Hat
95%
3.3.0 ≤ v < 3.3.233.4.0 ≤ v < 3.4.10
Affected range stops below 3.3.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.10, so it looks safe — our inference, not a vendor statement
Etcd· Etcd Io
60%
v < 3.3.23v < 3.4.10
Affected range stops below 3.3.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/

CVSS

7.7HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-772

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