CVE-2017-5383 Other in Firefox

Medium 5.3 Published Updated

Attackers can spoof domain names in the location bar using specific Unicode characters, potentially misleading users about the site's identity.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-5383?

CVE-2017-5383 is a medium-severity vulnerability in Debian Debian Linux, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display, allowing for domain name spoofing attacks in the location bar. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.

Weakness: CWE-20

Which versions are affected by CVE-2017-5383?

It affects 9 products.

Products include Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 3 more.

How do I fix CVE-2017-5383?

Upgrade to a fixed version.

Is CVE-2017-5383 being exploited?

There is no known exploitation of CVE-2017-5383 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-5383, GHSA-qr6h-8c8f-v3mw, UBUNTU-CVE-2017-5383.

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