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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
VendorProductVersion
envoyproxyenvoy
1.16.2
envoyproxyenvoy
1.17.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://blog.envoyproxy.io
https://github.com/envoyproxy/envoy/releases
https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg
https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfg
https://blog.envoyproxy.io
https://github.com/envoyproxy/envoy/releases
https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg