CVE-2013-4389 actionmailer email address processing causes Denial of service
Remote attackers can cause denial of service in Ruby on Rails Action Mailer via crafted email addresses triggering format string errors in logging.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4389?
CVE-2013-4389 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 17 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple format string vulnerabilities in log_subscriber.rb files in the log subscriber component in Action Mailer in Ruby on Rails 3.x before 3.2.15 allow remote attackers to cause a denial of service via a crafted e-mail address that is improperly handled during construction of a log message.
Weakness: CWE-134
Which versions are affected by CVE-2013-4389?
2 open source packages ship an affected version, including actionmailer. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
actionmailer RubyGems | From 3.0.0 | 3.2.15 |
actionmailer RubyGems | From 3.0.0 | 3.2.15 |
Products include Debian Debian Linux, Opensuse Opensuse, Rubyonrails Rails.
How do I fix CVE-2013-4389?
Upgrade actionmailer to 3.2.15 or later.
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-2013-4389 being exploited?
There is no known exploitation of CVE-2013-4389 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DSA-2887-1, GHSA-rg5m-3fqp-6px8.