CVE-2021-28683

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-28683
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28683.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-28683
Aliases
Downstream
Related
  • GHSA-r22g-5f3x-xjgg
  • GHSA-xw4q-6pj2-5gfg
Published
2021-05-20T17:15:07.713Z
Modified
2025-11-20T11:39:43.789233Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git / github.com/envoyproxy/envoy

Affected ranges

Type
GIT
Repo
https://github.com/envoyproxy/envoy
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d6a4496e712d7a2335b26e2f76210d5904002c26
Last affected
e98e41a8e168af7acae8079fc0cd68155f699aa3

Affected versions

v1.*

v1.0.0
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.16.1
v1.16.2
v1.17.0
v1.17.1
v1.2.0
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.7.0
v1.8.0
v1.9.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28683.json"