CRITICAL9.8
GHSA-mmrq-6999-72v8
Ruby Openssl Allows Incorrect Value Comparison
Quick fix
GHSA-mmrq-6999-72v8 — openssl: upgrade to the fixed version with the command below.
bundle update opensslDetails
An issue was discovered in the OpenSSL library in Ruby when two `OpenSSL::X509::Name` objects are compared using `==`, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of `==` will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.
Are you affected?
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Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-16395[ADVISORY]
- https://github.com/ruby/openssl/commit/f653cfa43f0f20e8c440122ea982382b6228e7f5[WEB]
- https://hackerone.com/reports/387250[WEB]
- https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released[WEB]
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-5-2-released[WEB]
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-4-5-released[WEB]
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-3-8-released[WEB]
- https://www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395[WEB]
- https://www.oracle.com/security-alerts/cpujan2020.html[WEB]
- https://www.debian.org/security/2018/dsa-4332[WEB]
- https://web.archive.org/web/20211206015239/https://securitytracker.com/id/1042105[WEB]
- https://usn.ubuntu.com/3808-1[WEB]
- https://security.netapp.com/advisory/ntap-20190221-0002[WEB]
- https://lists.debian.org/debian-lts-announce/2018/10/msg00020.html[WEB]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openssl/CVE-2018-16395.yml[WEB]
- https://access.redhat.com/errata/RHSA-2019:2565[WEB]
- https://access.redhat.com/errata/RHSA-2019:1948[WEB]
- https://access.redhat.com/errata/RHSA-2018:3738[WEB]
- https://access.redhat.com/errata/RHSA-2018:3731[WEB]
- https://access.redhat.com/errata/RHSA-2018:3730[WEB]
- https://access.redhat.com/errata/RHSA-2018:3729[WEB]
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html[WEB]