CVE-2018-12377

high-risk
Published 2018-10-18

A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

Do I need to act?

~
3.1% 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
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (17)

Affected Vendors

Debian Redhat Mozilla Canonical

References (34)

Third Party Advisory http://www.securityfocus.com/bid/105280
Third Party Advisory http://www.securitytracker.com/id/1041610
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2692
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2693
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3403
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3458
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1470260
Mailing List https://lists.debian.org/debian-lts-announce/2018/11/msg00011.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/3761-1/
Third Party Advisory https://usn.ubuntu.com/3793-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4287
Third Party Advisory https://www.debian.org/security/2018/dsa-4327
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-20/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-21/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-25/
Third Party Advisory http://www.securityfocus.com/bid/105280
Third Party Advisory http://www.securitytracker.com/id/1041610
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2692
and 14 more references
57
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 6/34 · Minimal
Exposure 19/34 · Moderate