#VU14634 Use-after-free in Mozilla Firefox - CVE-2018-12378
Published: September 6, 2018
Vulnerability identifier: #VU14634
Vulnerability risk: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: CVE-2018-12378
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Mozilla Firefox
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to use-after-free error when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update to version 62.0.