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CVE-2018-5178

Published: 10 May 2018

A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR < 52.8, Thunderbird < 52.8, and Firefox ESR < 52.8.

Priority

Low

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
upstream
Released (52.8.0)
xenial
Released (1:52.8.0+build1-0ubuntu0.16.04.1)
artful
Released (1:52.8.0+build1-0ubuntu0.17.10.1)
bionic
Released (1:52.8.0+build1-0ubuntu0.18.04.1)
trusty
Released (1:52.8.0+build1-0ubuntu0.14.04.1)

Severity score breakdown

Parameter Value
Base score 8.1
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H