CVE-2012-2250 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can cause a denial of service in Tor by performing incorrect link protocol negotiation, leading to daemon exit.

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

What is CVE-2012-2250?

CVE-2012-2250 is a medium-severity denial of service vulnerability in n/a, published on 3 Feb 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tor before 0.2.3.24-rc allows remote attackers to cause a denial of service (assertion failure and daemon exit) by performing link protocol negotiation incorrectly.

Which versions are affected by CVE-2012-2250?

It affects 1 product.

Products include Torproject Tor.

How do I fix CVE-2012-2250?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2012-2250 being exploited?

There is no known exploitation of CVE-2012-2250 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2012-2250, GHSA-53mj-fv46-cqg6.

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