CVE & CISA-KEV Catalog

CVE-2020-15114

HIGH
7.7
CVSS v3
NVD

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.

How to fix

Remediation Available
etcdDebian
Fixed in:3.3.25+dfsg-5CVE-2020-15114
Fixed in:3.3.25+dfsg-5CVE-2020-15114
Fixed in:3.3.25+dfsg-5CVE-2020-15114
Fixed in:3.3.25+dfsg-5CVE-2020-15114
etcdUbuntu
Fixed in:3.2.17+dfsg-1ubuntu0.1~esm1USN-5628-2
Fixed in:3.2.26+dfsg-6ubuntu0.1USN-5628-1
etcd-clientUbuntu
Fixed in:3.2.17+dfsg-1ubuntu0.1~esm1USN-5628-2
Fixed in:3.2.26+dfsg-6ubuntu0.1USN-5628-1
etcd-serverUbuntu
Fixed in:3.2.17+dfsg-1ubuntu0.1~esm1USN-5628-2
Fixed in:3.2.26+dfsg-6ubuntu0.1USN-5628-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Exploit Intelligence

1.21%probability of exploitation in 30 days
65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Third-Party Advisory1
Other references1

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-44487High7.5100%KEVFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2011-3192High7.899%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2024-25617Medium5.389%-Fix
CVE-2018-1000115High7.589%-Fix
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.