CVE-2017-7843 — Vulnetix

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CVE-2017-7843 PUBLISHED

When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.

EPSS 1.06% · 77.5th percentile

Risk Scores

EPSS Score

1.06%

77.5th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	firefox	56.0+build6-0ubuntu1, 0
Ubuntu:14.04:LTS	firefox	25.0+build3-0ubuntu0.13.10.1, 28.0~b2+build1-0ubuntu2, 28.0+build1-0ubuntu1
Ubuntu:16.04:LTS	firefox	42.0+build2-0ubuntu1, 44.0+build3-0ubuntu2, 44.0.1+build1-0ubuntu1

Timeline

Jun 11, 2018 CVE Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Feb 4, 2022 EPSS Score
Feb 25, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score
Nov 1, 2022 EPSS Score
Jan 2, 2023 EPSS Score
Mar 5, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2017-7843 third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2017-7843 third-party-advisory

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