DescriptionMultiple 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDSA-2887-1, DSA-2888-1
Debian Bugs726576

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rails (PTS)buster2:
buster (security)2:
bullseye (security), bullseye2:
bookworm, sid2:

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
railssource(unstable)(not affected)
rails-4.0source(unstable)(not affected)
ruby-actionmailer-2.3source(unstable)(not affected)


- rails-4.0 <not-affected> (Only affects 3.x)
- ruby-actionmailer-2.3 <not-affected> (Only affects 3.x)
- rails <not-affected> (Only affects 3.x)
Starting with rails is a transition package

Search for package or bug name: Reporting problems