Privilege escalation in Mozilla Firefox - CVE-2018-5105
Published: January 24, 2018
Vulnerability identifier: #VU10184
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-5105
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to an error in WebExtensions. A local attacker can bypass prompts to save and open an arbitrarily downloaded file and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to an error in WebExtensions. A local attacker can bypass prompts to save and open an arbitrarily downloaded file and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
Mozilla Firefox
Ubuntu
Ubuntu
How to mitigate CVE-2018-5105
Update to version 58.0.