CVE-2011-4586 Other in n/a

Medium 5.0 Published Updated

Remote attackers can inject HTTP headers and split responses in Moodle's calendar subsystem, potentially enabling cache poisoning or session fixation.

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

What is CVE-2011-4586?

CVE-2011-4586 is a medium-severity vulnerability in Moodle Moodle, published on 20 Jul 2012. It can be exploited over the network, with no action from the victim.

Official description

CRLF injection vulnerability in calendar/set.php in the Calendar subsystem in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

Which versions are affected by CVE-2011-4586?

It affects 1 product.

Products include Moodle Moodle.

How do I fix CVE-2011-4586?

Upgrade to a fixed version.

Is CVE-2011-4586 being exploited?

There is no known exploitation of CVE-2011-4586 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as GHSA-5hc2-8542-698w.

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