CVE-2018-18492

Published: 11 December 2018

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.

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
firefox Launchpad, Ubuntu, Debian	bionic	Released (64.0+build3-0ubuntu0.18.04.1)
	cosmic	Released (64.0+build3-0ubuntu0.18.10.1)
	trusty	Released (64.0+build3-0ubuntu0.14.04.1)
	upstream	Released (64.0)
	xenial	Released (64.0+build3-0ubuntu0.16.04.1)
thunderbird Launchpad, Ubuntu, Debian	bionic	Released (1:60.4.0+build2-0ubuntu0.18.04.1)
	cosmic	Released (1:60.4.0+build2-0ubuntu0.18.10.1)
	trusty	Released (1:60.4.0+build2-0ubuntu0.14.04.1)
	upstream	Released (60.4)
	xenial	Released (1:60.4.0+build2-0ubuntu0.16.04.1)

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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