Spoofing attack in Mozilla Firefox - CVE-2018-5117

Vulnerability identifier: #VU10190

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-5117

CWE-ID: CWE-451

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to spoof browser address bar.

The vulnerability exists due to an error when right-to-left text is used in the addressbar with left-to-right alignment. A remote attacker can trick the victim into visiting a specially crafted website, and spoof the URL.

Mozilla Firefox
Gentoo Linux
Debian Linux
Red Hat Enterprise Linux for x86_64
SUSE Linux
Ubuntu
Opensuse
OTRS
Mozilla Thunderbird
firefox-esr (Alpine package)

Update to version 58.0.

firefox-esr (Alpine package) - update to 52.6.0-r0

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

• Multiple vulnerabilities in Mozilla Firefox
• Ubuntu update for Firefox
• Debian update for firefox-esr
• Red Hat update for MozillaFirefox
• openSUSE update for MozillaFirefox
• Multiple vulnerabilities in Mozilla Thunderbird
• SUSE Linux update for MozillaThunderbird
• Debian update for thunderbird
• Red Hat update for Mozilla Thunderbird
• SUSE Linux update for Mozilla Firefox
• SUSE Linux update for Mozilla Firefox
• Ubuntu update for Firefox
• Gentoo update for Mozilla Firefox
• OpenSUSE Linux update for MozillaThunderbird
• Gentoo update for Mozilla Thunderbird
• Spoofing attack in firefox-esr (Alpine package)