CVEvulnerability
CVE-2019-17023
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-01-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-287
Description
After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox < 72.
Affected configurations
• mozilla firefox (< 72.0)
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.04
• canonical ubuntu linux 19.10
• canonical ubuntu linux 20.04
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 Issue Tracking, Permissions Required
- https://usn.ubuntu.com/4234-1/ Third Party Advisory
- https://usn.ubuntu.com/4397-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-01/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 Issue Tracking, Permissions Required
- https://usn.ubuntu.com/4234-1/ Third Party Advisory
- https://usn.ubuntu.com/4397-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-01/ Vendor Advisory