CVE-2018-12363

high-risk
Published 2018-10-18

A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Do I need to act?

~
2.6% 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 (19)

Affected Vendors

Debian Redhat Mozilla Canonical

References (40)

Third Party Advisory http://www.securityfocus.com/bid/104560
Third Party Advisory http://www.securitytracker.com/id/1041193
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2112
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2113
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2251
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2252
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1464784
Mailing List https://lists.debian.org/debian-lts-announce/2018/06/msg00014.html
Mailing List https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html
Third Party Advisory https://security.gentoo.org/glsa/201810-01
Third Party Advisory https://security.gentoo.org/glsa/201811-13
Third Party Advisory https://usn.ubuntu.com/3705-1/
Third Party Advisory https://usn.ubuntu.com/3714-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4235
Third Party Advisory https://www.debian.org/security/2018/dsa-4244
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-15/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-16/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-17/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-18/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-19/
and 20 more references
55
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 19/34 · Moderate