Improper Authentication Affecting firefox package, versions <72.0.1+build1-0ubuntu0.16.04.1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.22% (61st percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-541227
  • published7 Jan 2020
  • disclosed8 Jan 2020

Introduced: 7 Jan 2020

CVE-2019-17023  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 72.0.1+build1-0ubuntu0.16.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1