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

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    EPSS 0.55% (78th percentile)
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NVD
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOXESR-354353
  • published 11 Jun 2018
  • disclosed 11 Jun 2018
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Introduced: 11 Jun 2018

CVE-2017-7843 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Debian:unstable 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:unstable 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.