A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4310-1 firefox-esr security update
Ubuntu USN Ubuntu USN USN-3778-1 Firefox 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: 2024-08-05T08:30:59.795Z

Reserved: 2018-06-14T00:00:00

Link: CVE-2018-12387

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-10-18T13:29:06.400

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

Link: CVE-2018-12387

cve-icon Redhat

Severity : Critical

Publid Date: 2018-10-02T00:00:00Z

Links: CVE-2018-12387 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses