Vulnerability 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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | 1.16.2 |
Related Weaknesses (CWE)
References
- https://blog.envoyproxy.ioVendor Advisory
- https://github.com/envoyproxy/envoy/releasesThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjggNot ApplicableThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfgThird Party Advisory
- https://blog.envoyproxy.ioVendor Advisory
- https://github.com/envoyproxy/envoy/releasesThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjggNot ApplicableThird Party Advisory
FAQ
What is CVE-2021-28683?
CVE-2021-28683 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2021-28683?
CVE-2021-28683 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-28683?
Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy.