CVE-2018-18492

critical

Description

A use-after-free vulnerability can occur after deleting a selection element due to a weak reference to the select element in the options collection. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

References

Advisories
More

https://www.debian.org/security/2019/dsa-4362

https://www.debian.org/security/2018/dsa-4354

https://usn.ubuntu.com/3868-1/

https://usn.ubuntu.com/3844-1/

https://security.gentoo.org/glsa/201903-04

https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html

https://access.redhat.com/errata/RHSA-2019:0160

https://access.redhat.com/errata/RHSA-2019:0159

https://access.redhat.com/errata/RHSA-2018:3833

https://access.redhat.com/errata/RHSA-2018:3831

http://www.securityfocus.com/bid/106168

https://www.mozilla.org/security/advisories/mfsa2018-31/

https://www.mozilla.org/security/advisories/mfsa2018-30/

https://www.mozilla.org/security/advisories/mfsa2018-29/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-10217

https://bugzilla.mozilla.org/show_bug.cgi?id=1499861

Details

Source: Mitre, NVD

Published: 2019-02-28

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.09646