CVE-2017-7843

 

Published at: - 11-06-2018 11:29

Last modified: - 24-09-2022 03:03

Total changes: - 2

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

 

Verification logic

 

Reference

• https://www.mozilla.org/security/advisories/mfsa2017-28/
• https://www.mozilla.org/security/advisories/mfsa2017-27/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1410106
• DSA-4062-Third Party Advisory
• [debian-lts-announce] 20171210 [SECURITY] [DLA 1202-1] firefox-esr security update-Third Party Advisory
• RHSA-2017:3382-Third Party Advisory
• 1039954-Third Party Advisory, VDB Entry
• 102112-Third Party Advisory, VDB Entry
• 102039-Issue Tracking, Third Party Advisory, VDB Entry

 

Keywords

NVD

 

CVE-2017-7843

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures