CVE-2021-28683 - An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable NULL pointer derefe

CVE-2021-28683

Summary

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.

References

https://github.com/envoyproxy/envoy/releases
https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg
https://blog.envoyproxy.io
https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfg

Vulnerable Configurations

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

CVSS

Base:	5.0 (as of 27-05-2021 - 15:19)
Impact:
Exploitability:

CWE

CWE-476

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	LOW	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	PARTIAL

cvss-vector via4

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

Last major update

27-05-2021 - 15:19

Published

20-05-2021 - 17:15

Last modified

27-05-2021 - 15:19