GitHub Advisoryadvisory · RubyGems
GHSA-mmrq-6999-72v8 Ruby Openssl Allows Incorrect Value Comparison
CRITICAL
Official page ↗
- Aliases
- CVE-2018-16395
- Ecosystem
- RubyGems
- Packages
- openssl
- Severity
- Critical
- CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Reviewed
- 2023-06-09
Affected packages
• RubyGems openssl: < 2.0.9 → fixed in 2.0.9
• RubyGems openssl: >= 2.1.0, < 2.1.2 → fixed in 2.1.2
Description
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.
Related
Alias · CVE (1)
- CVE-2018-16395 An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before… vulnerability
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