CVE-2017-16541 Information disclosure in n/a

Medium 6.5 Published Updated

Remote attackers can discover a client's IP address by exploiting file:// mishandling in Tor Browser, bypassing anonymity features.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2017-16541?

CVE-2017-16541 is a medium-severity vulnerability in Debian Debian Linux, published on 4 Nov 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.

Weakness: CWE-200

Which versions are affected by CVE-2017-16541?

It affects 8 products.

Products include Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus and 2 more.

How do I fix CVE-2017-16541?

Upgrade to a fixed version.

Is CVE-2017-16541 being exploited?

There is no known exploitation of CVE-2017-16541 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-16541, GHSA-9348-g23j-56pf, UBUNTU-CVE-2017-16541.

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