CVE-2018-12389

high-risk
Published 2019-02-28

Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.

Do I need to act?

~
1.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (18)

Affected Vendors

Debian Redhat Mozilla Canonical

References (34)

Third Party Advisory http://www.securityfocus.com/bid/105723
Third Party Advisory http://www.securityfocus.com/bid/105769
Third Party Advisory http://www.securitytracker.com/id/1041944
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3005
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3006
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3531
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3532
Broken Link https://bugzilla.mozilla.org/buglist.cgi?bug_id=1498460%2C1499198
Mailing List https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html
Mailing List https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html
Third Party Advisory https://security.gentoo.org/glsa/201811-04
Third Party Advisory https://security.gentoo.org/glsa/201811-13
Third Party Advisory https://usn.ubuntu.com/3868-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4324
Third Party Advisory https://www.debian.org/security/2018/dsa-4337
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-27/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-28/
Third Party Advisory http://www.securityfocus.com/bid/105723
Third Party Advisory http://www.securityfocus.com/bid/105769
Third Party Advisory http://www.securitytracker.com/id/1041944
and 14 more references
54
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 5/34 · Minimal
Exposure 19/34 · Moderate