CVE-2019-11747

NameCVE-2019-11747
DescriptionThe "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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid70.0.1-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1fixed
jessie (security)68.2.0esr-1~deb8u1fixed
stretch60.7.1esr-1~deb9u1fixed
stretch (security)68.2.0esr-1~deb9u2fixed
buster, buster (security)68.2.0esr-1~deb10u1fixed
bullseye, sid68.2.0esr-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)69.0-1
firefox-esrsource(unstable)68.1.0esr-1
firefox-esrsourcebuster(not affected)
firefox-esrsourcejessie(not affected)
firefox-esrsourcestretch(not affected)

Notes

[buster] - firefox-esr <not-affected> (Doesn't affect ESR60)
[stretch] - firefox-esr <not-affected> (Doesn't affect ESR60)
[jessie] - firefox-esr <not-affected> (Doesn't affect ESR60)
https://www.mozilla.org/en-US/security/advisories/mfsa2019-25/#CVE-2019-11747
https://www.mozilla.org/en-US/security/advisories/mfsa2019-26/#CVE-2019-11747

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