VDB-150877 · CVE-2020-8661 · RHSA-2020:0734

CNCF Envoy up to 1.13.0 Pipeline Request resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in CNCF Envoy up to 1.13.0. Affected by this issue is some unknown functionality of the component Pipeline Handler. This manipulation as part of Request causes resource consumption. This vulnerability is tracked as CVE-2020-8661. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in CNCF Envoy up to 1.13.0. Affected by this vulnerability is some unknown processing of the component Pipeline Handler. The manipulation as part of a Request leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

CNCF Envoy through 1.13.0 may consume excessive amounts of memory when responding internally to pipelined requests.

The weakness was disclosed 03/04/2020 (Website). The advisory is shared at envoyproxy.io. This vulnerability is known as CVE-2020-8661 since 02/06/2020. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

CNCF

Name

Envoy

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/06/2020 🔍
03/04/2020 +27 days 🔍
03/05/2020 +1 days 🔍
04/09/2024 +1496 days 🔍

Sourcesinfo

Advisory: RHSA-2020:0734
Status: Not defined

CVE: CVE-2020-8661 (🔍)
GCVE (CVE): GCVE-0-2020-8661
GCVE (VulDB): GCVE-100-150877
See also: 🔍

Entryinfo

Created: 03/05/2020 08:29
Updated: 04/09/2024 14:51
Changes: 03/05/2020 08:29 (39), 03/05/2020 08:34 (17), 04/09/2024 14:51 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.