Detections
Analytics
CVE-2015-1855
medium
Description
verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters.
References
https://www.ruby-lang.org/en/news/2015/04/13/ruby-openssl-hostname-matching-vulnerability/
https://puppetlabs.com/security/cve/cve-2015-1855
https://bugs.ruby-lang.org/issues/9644
http://www.debian.org/security/2015/dsa-3247