CVE-2021-34433
- Source
- https://cve.org/CVERecord?id=CVE-2021-34433
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34433.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-34433
- Published
- 2021-08-20T17:15:07.687Z
- Modified
- 2026-04-10T04:34:34.476559Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.
- References
Affected packages
Git / github.com/eclipse/californium
Affected ranges
- Type
- GIT
- Repo
- https://github.com/eclipse/californium
- Events
-
IntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "2.0.0" }, { "fixed": "2.6.5" }, { "introduced": "0" }, { "last_affected": "3.0.0-m1" }, { "introduced": "0" }, { "last_affected": "3.0.0-m2" }, { "introduced": "0" }, { "last_affected": "3.0.0-m3" } ] }