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[email protected]NVD:CVE-2021-28683

HistoryMay 20, 2021 - 5:15 p.m.

CVE-2021-28683

2021-05-2017:15:07

CWE-476

[email protected]

web.nvd.nist.gov

envoy

remote exploit

tls

crash

vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.002

Percentile

54.0%

JSON

An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable NULL pointer dereference and crash in TLS when an unknown TLS alert code is received.

Affected configurations

Nvd

Node

envoyproxyenvoyMatch1.16.2

envoyproxyenvoyMatch1.17.1

VendorProductVersionCPE
envoyproxyenvoy1.16.2cpe:2.3:a:envoyproxy:envoy:1.16.2:*:*:*:*:*:*:*
envoyproxyenvoy1.17.1cpe:2.3:a:envoyproxy:envoy:1.17.1:*:*:*:*:*:*:*