7.5
HIGH CVSS 3.1
CVE-2020-8659
CNCF Envoy HTTP DoS Memory Exhaustion
Description

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.

INFO

Published Date :

March 4, 2020, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 5:39 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2020-8659 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Envoyproxy envoy
1 Redhat openshift_service_mesh
1 Cncf envoy
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Solution
To address the Envoy HTTP DoS vulnerability, update Envoy and related Linux packages.
  • Upgrade Envoy to a version greater than 1.13.0.
  • Update the affected Linux packages.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-8659.

URL Resource
https://access.redhat.com/errata/RHSA-2020:0734 Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html Mailing List Third Party Advisory
https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history Release Notes Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0734 Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html Mailing List Third Party Advisory
https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history Release Notes Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-8659 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-8659 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8659 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0734
    Added Reference https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv
    Added Reference https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html
    Added Reference https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Sep. 30, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 18, 2022

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 18, 2022

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHSA-2020:0734 No Types Assigned https://access.redhat.com/errata/RHSA-2020:0734 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-400 CWE-770
  • CVE Modified by [email protected]

    Mar. 11, 2020

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0734 [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 05, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv No Types Assigned https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv Third Party Advisory
    Changed Reference Type https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history No Types Assigned https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history Release Notes, Third Party Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:cncf:envoy:*:*:*:*:*:*:*:* versions up to (including) 1.13.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.03 }} 0.10%

score

0.76338

percentile