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Information Exposure Affecting firefox-esr package, versions <52.5.2esr-1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.99% (84th percentile)

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  • Snyk IDSNYK-DEBIAN13-FIREFOXESR-5679820
  • published11 Jun 2018
  • disclosed11 Jun 2018
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Introduced: 11 Jun 2018

CVE-2017-7843  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:13 firefox-esr to version 52.5.2esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:13 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.