CVE-2021-28683

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/envoyproxy/envoy/releases	Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg	Not Applicable Third Party Advisory
https://blog.envoyproxy.io	Vendor Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfg	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy:1.16.2:::::::*
	cpe:2.3:a:envoyproxy:envoy:1.17.1:::::::*

Information

Published : 2021-05-20 10:15

Updated : 2021-05-27 08:19

NVD link : CVE-2021-28683

Mitre link : CVE-2021-28683

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

envoyproxy

envoy

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