Information disclosure in Mozilla Firefox - CVE-2018-5106

Vulnerability identifier: #VU10185

CSH Severity: Low

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

CVE-ID: CVE-2018-5106

CWE-ID: CWE-200

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to an error in the Developer Tools. A remote attacker can route style editor traffic through a service worker hosted on a third party website, bypass cross-origin restrictions via Developer Tools and obtain arbitrary files.

Mozilla Firefox
Ubuntu

Update to version 58.0.

• https://www.mozilla.org/en-US/security/advisories/mfsa2018-02/

• Multiple vulnerabilities in Mozilla Firefox
• Ubuntu update for Firefox
• Ubuntu update for Firefox