CVE-2011-4078 Denial of service in n/a
Remote attackers can cause denial of service in Roundcube Webmail by sending emails with URLs in the Subject header, requiring specific PHP versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-4078?
CVE-2011-4078 is a medium-severity denial of service vulnerability in Roundcube Webmail, published on 3 Nov 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
include/iniset.php in Roundcube Webmail 0.5.4 and earlier, when PHP 5.3.7 or 5.3.8 is used, allows remote attackers to trigger a GET request for an arbitrary URL, and cause a denial of service (resource consumption and inbox outage), via a Subject header containing only a URL, a related issue to CVE-2011-3379.
Weakness: CWE-399
Which versions are affected by CVE-2011-4078?
It affects 1 product.
Products include Roundcube Webmail.
How do I fix CVE-2011-4078?
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-2011-4078 being exploited?
There is no known exploitation of CVE-2011-4078 in the wild and no public exploit code.
Other vulnerabilities in Roundcube Webmail
Sources
Also known as DEBIAN-CVE-2011-4078, GHSA-w3fh-pxv3-4cx4.