Improper input validation in Mozilla Firefox - CVE-2018-12368

 

Improper input validation in Mozilla Firefox - CVE-2018-12368

Published: June 27, 2018


Vulnerability identifier: #VU13490
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-12368
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to iWindows 10 does not warn users before opening executable files with the SettingContent-msextension even when they have been downloaded from the internet and have the "Mark of the Web". A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, use WebExtension with the limited downloads.openpermission and execute arbitrary code without user interaction on Windows 10 systems

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

Mozilla Firefox
Firefox ESR
Gentoo Linux
Slackware Linux
Mozilla Thunderbird

How to mitigate CVE-2018-12368

Update to version 61.0.

Mozilla Firefox - update to 61.0
Mozilla Thunderbird - update to 60.0

External References

Related Security Bulletins