vulnerability
MFSA2020-01 Firefox: Security Vulnerabilities fixed in Firefox 72 (CVE-2019-17023)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Jan 7, 2020 | Jan 8, 2020 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Jan 7, 2020
Added
Jan 8, 2020
Modified
Aug 11, 2025
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.
Solution
mozilla-firefox-upgrade-72_0
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