Envoy up to 1.16.0 UDP Datagram denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Envoy up to 1.16.0. The affected element is an unknown function of the component UDP Datagram Handler. This manipulation causes denial of service. This vulnerability is registered as CVE-2020-35471. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Envoy up to 1.16.0 and classified as problematic. Affected by this vulnerability is some unknown functionality of the component UDP Datagram Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was published 12/15/2020. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-35471. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 1.16.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Envoy 1.16.1
Patch: github.com

Timelineinfo

12/15/2020 🔍
12/15/2020 +0 days 🔍
12/15/2020 +0 days 🔍
12/18/2020 +3 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2020-35471 (🔍)

GCVE (CVE): GCVE-0-2020-35471
GCVE (VulDB): GCVE-100-166315

Entryinfo

Created: 12/15/2020 15:21
Updated: 12/18/2020 09:23
Changes: 12/15/2020 15:21 (39), 12/18/2020 09:19 (5), 12/18/2020 09:23 (18)
Complete: 🔍
Cache ID: 216::103

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