CVE-2017-7843

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    CVE-2017-7843

    Published: 11 Jun 2018Last Modified: 16 Apr 2026

    Summary:

    Details: 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.

    References: http://www.securityfocus.com/bid/102112, https://access.redhat.com/errata/RHSA-2017:3382, https://lists.debian.org/debian-lts-announce/2017/12/msg00003.html, https://www.debian.org/security/2017/dsa-4062, https://www.mozilla.org/security/advisories/mfsa2017-28/, http://www.securitytracker.com/id/1039954, https://www.mozilla.org/security/advisories/mfsa2017-27/, http://www.securityfocus.com/bid/102039, https://bugzilla.mozilla.org/show_bug.cgi?id=1410106

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2017-7843 | CVE-DB