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Improper Cross-boundary Removal of Sensitive Data Affecting firefox package, versions <0:52.5.1-1.el7_4

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.99% (84th percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-4746390
  • published26 Jul 2021
  • disclosed4 Dec 2017
Report a new vulnerability Found a mistake?

Introduced: 4 Dec 2017

CVE-2017-7843  (opens in a new tab)
CWE-212  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:52.5.1-1.el7_4 or higher.
This issue was patched in RHSA-2017:3382.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.