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Ubuntu: (Multiple Advisories) (CVE-2019-11747): Firefox vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2019-11747): Firefox vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
09/03/2019
Created
09/05/2019
Added
09/05/2019
Modified
11/11/2024

Description

The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

Solution(s)

  • ubuntu-upgrade-firefox

References

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