Security restrictions bypass in Mozilla Firefox - CVE-2018-12369

Vulnerability identifier: #VU13491

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-12369

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. A remote attacker can use a malicious WebExtension to bypass security restrictions and gain full browser permissions.

Mozilla Firefox
Firefox ESR
Arch Linux
Gentoo Linux
openSUSE Leap

Update to version 61.0.

Mozilla Firefox - update to 61.0

• https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/

• Multiple vulnerabilities in Mozilla Firefox
• Multiple vulnerabilities in Mozilla Firefox ESR
• Arch Linux update for firefox
• OpenSUSE Linux update for MozillaFirefox
• Gentoo update for Mozilla Firefox