CVE-2018-12387

9.1 CRITICAL
Published: October 18, 2018 Modified: November 25, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/105460
Source: security@mozilla.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041770
Source: security@mozilla.org
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:2881
Source: security@mozilla.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2884
Source: security@mozilla.org
Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
Source: security@mozilla.org
Exploit Issue Tracking Patch Vendor Advisory
https://security.gentoo.org/glsa/201810-01
Source: security@mozilla.org
Third Party Advisory
https://usn.ubuntu.com/3778-1/
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2018/dsa-4310
Source: security@mozilla.org
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-24/
Source: security@mozilla.org
Vendor Advisory
http://www.securityfocus.com/bid/105460
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041770
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:2881
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2884
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Patch Vendor Advisory
https://security.gentoo.org/glsa/201810-01
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://usn.ubuntu.com/3778-1/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2018/dsa-4310
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-24/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.1 / 10.0
EPSS (Exploit Probability)
34.2%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

mozilla debian redhat canonical

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