An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific contexts. This could be used to leak information, such as usernames embedded in JavaScript code, across websites. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-743-1 firefox-esr security update
Debian DLA Debian DLA DLA-782-1 icedove security update
Debian DSA Debian DSA DSA-3734-1 firefox-esr security update
Debian DSA Debian DSA DSA-3757-1 icedove security update
EUVD EUVD EUVD-2016-10693 An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific contexts. This could be used to leak information, such as usernames embedded in JavaScript code, across websites. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
Ubuntu USN Ubuntu USN USN-3155-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-3165-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-06T03:07:31.215Z

Reserved: 2016-12-07T00:00:00.000Z

Link: CVE-2016-9904

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-06-11T21:29:02.467

Modified: 2025-11-25T17:50:16.803

Link: CVE-2016-9904

cve-icon Redhat

Severity : Moderate

Publid Date: 2016-12-14T00:00:00Z

Links: CVE-2016-9904 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses