CVE-2019-11705

Published: 14 June 2019

A flaw in Thunderbird's implementation of iCal causes a stack buffer overflow in icalrecur_add_bydayrules when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
thunderbird Launchpad, Ubuntu, Debian	bionic	Released (1:60.7.1+build1-0ubuntu0.18.04.1)
	cosmic	Released (1:60.7.1+build1-0ubuntu0.18.10.1)
	disco	Released (1:60.7.1+build1-0ubuntu0.19.04.1)
	trusty	Does not exist
	upstream	Released (60.7.1)
	xenial	Released (1:60.7.1+build1-0ubuntu0.16.04.1)

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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