Use-after-free error in Mozilla Firefox - CVE-2018-5128
Published: March 13, 2018
Vulnerability identifier: #VU10974
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-2018-5128
CWE-ID: CWE-416
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 weakness exists due to use-after-free error when manipulating elements, events, and selection ranges during editor operations. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to use-after-free error when manipulating elements, events, and selection ranges during editor operations. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
Mozilla Firefox
firefox (Ubuntu package)
firefox (Ubuntu package)
How to mitigate CVE-2018-5128
Update to version 59.0.
firefox (Ubuntu package) - addressed in versions 59.0+build5-0ubuntu0.14.04.1, 59.0+build5-0ubuntu0.16.04.1, 59.0+build5-0ubuntu0.17.10.1