What’s Vulnerable › Vulnerabilities

CVE-2013-4389

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-10-17 · updated 2026-06-16
• Weakness: CWE-134

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.

Affected products

• Debian Linux: 7.0
• Opensuse: 12.2, 12.3, 13.1
• Ruby on Rails: from 3.0.0 before 3.2.15 — fixed in 3.2.15

How to fix

Upgrade to a fixed version: Ruby on Rails 3.2.15. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-updates/2013-12/msg00091.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00094.html
• http://lists.opensuse.org/opensuse-updates/2014-01/msg00003.html
• http://www.debian.org/security/2014/dsa-2887
• http://www.debian.org/security/2014/dsa-2888
• https://groups.google.com/forum/message/raw?msg=ruby-security-ann/yvlR1Vx44c8/elKJkpO2KVgJ
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00091.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00094.html
• http://lists.opensuse.org/opensuse-updates/2014-01/msg00003.html
• http://www.debian.org/security/2014/dsa-2887
• http://www.debian.org/security/2014/dsa-2888
• https://groups.google.com/forum/message/raw?msg=ruby-security-ann/yvlR1Vx44c8/elKJkpO2KVgJ

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