What is CVE-2020-8659?

CVE-2020-8659 is a high-severity vulnerability in Cncf Envoy, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-03-04.

How severe is CVE-2020-8659?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2020-8659 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Cncf Envoy

CVE-2020-8659

CNCF Envoy through 1.13.0 may consume excessive amounts of memory when proxying HTTP/1.1 requests or responses with many small (i.e. 1 byte) chunks.

EPSS: 0.019 (77.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Cncf Envoy
Debian Debian_linux — versions 9.0
Redhat Openshift_service_mesh — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory, Release Notes)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-8659?: CVE-2020-8659 is a high-severity vulnerability in Cncf Envoy, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-03-04.
How severe is CVE-2020-8659?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-8659 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.