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CVE-2015-1855

CVE-2015-1855

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 2.8%
exploitation probability
2.8%top 15% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Ruby · Ruby
References
https://bugs.ruby-lang.org/issues/9644https://puppetlabs.com/security/cve/cve-2015-1855https://www.ruby-lang.org/en/news/2015/04/13/ruby-openssl-hostname-matching-vulnerability/http://www.debian.org/security/2015/dsa-3245http://www.debian.org/security/2015/dsa-3246http://www.debian.org/security/2015/dsa-3247