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MFSA2020-01 Firefox: Security Vulnerabilities fixed in Firefox 72 (CVE-2019-17023)

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MFSA2020-01 Firefox: Security Vulnerabilities fixed in Firefox 72 (CVE-2019-17023)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
01/07/2020
Created
01/09/2020
Added
01/08/2020
Modified
07/21/2020

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(s)

  • mozilla-firefox-upgrade-72_0

References

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