CVE-2018-12387
9.1
CRITICAL
CVSS 3.1
EPSS 9.6%
Description
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.
How to fix CVE-2018-12387
To remediate CVE-2018-12387, upgrade the affected package to a fixed version below.
- —upgrade to 60.2.2esr-1 or later
Is CVE-2018-12387 being exploited?
Moderate — EPSS is 9.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 60.2.2esr-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |