Use-after-free error in Mozilla Firefox - CVE-2018-18492

Vulnerability identifier: #VU16447

CSH Severity: High

CVSS v4.0: 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-2018-18492

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Mozilla

Affected software:
Mozilla Firefox

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

The weakness exists due to use-after-free error after deleting a selection element due to a weak reference to the select element in the options collection.. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Update to version 64.0.

• https://www.mozilla.org/en-US/security/advisories/mfsa2018-29/