CVE-2021-28683
Published May 20, 2021
Last updated 3 years ago
Overview
- Description
- 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-476
Social media
- Hype score
- Not currently trending
Configurations
[ { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:a:envoyproxy:envoy:1.16.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "065415B4-0F56-4AE3-B17D-B38416543DDC" }, { "criteria": "cpe:2.3:a:envoyproxy:envoy:1.17.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA926D71-E8B2-40D9-9D44-CAC09EB4FCA4" } ], "operator": "OR" } ] } ]