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CVE-2018-12387

N/A
Published: October 18, 2018 at 01:00 PM UTC
Updated: June 17, 2026 at 01:37 AM UTC
9 products affected across 4 vendorsDebian LinuxUbuntu LinuxFirefox

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Severity
N/A
Exploit prediction
EPSS 10%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (9)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/105460
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1041770
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:2881
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2018:2884
x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1493903
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201810-01
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3778-1/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2018/dsa-4310

CVSS

6.4MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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