{"answers":{"affected":"4 open source packages ship an affected version, including openssl. It affects 5 products.","exploited":"There is no known exploitation of CVE-2018-16395 in the wild and no public exploit code.","fix":"Upgrade openssl to a fixed version for your release line: 2.0.9 or 2.1.2.","what":"CVE-2018-16395 is a critical vulnerability in Canonical Ubuntu Linux, published on 16 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-16395 and fix it if it is affected.\n\nWhat it is: CVE-2018-16395 is a critical vulnerability in Canonical Ubuntu Linux, published on 16 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-16395 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- openssl (RubyGems): affected all versions; fixed in 2.0.9\n- openssl (RubyGems): affected all versions; fixed in 2.0.9\n- openssl (RubyGems): affected from 2.1.0; fixed in 2.1.2\n- openssl (RubyGems): affected from 2.1.0; fixed in 2.1.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2018-16395/ (Markdown: https://insights.sbomify.com/CVE-2018-16395/index.md)","id":"CVE-2018-16395","markdown":"https://insights.sbomify.com/CVE-2018-16395/index.md","name":"CVE-2018-16395","record":{"aliases":["ALPINE-CVE-2018-16395","CLEANSTART-2026-QW33820","GHSA-mmrq-6999-72v8","RHSA-2018:3738","RHSA-2019:1948","RHSA-2019:2565","UBUNTU-CVE-2018-16395"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby OpenSSL library","requires_auth":"none","summary":"Flawed certificate comparison in Ruby's OpenSSL allows accepting illegitimate certificates, bypassing security checks for signing or encryption.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"openssl","vendor":"ruby-lang"},{"product":"ruby","vendor":"ruby-lang"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[],"description":"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 2.6.0-preview3. 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.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:rhel_eus:7.4::computenode","Red Hat:rhel_eus:7.4::server","Red Hat:rhel_eus:7.5::computenode","Red Hat:rhel_eus:7.5::server","RubyGems"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Ruby Openssl Allows Incorrect Value Comparison","id":"CVE-2018-16395","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","redhat:enterprise_linux","ruby-lang:ruby"],"type":"security_feature_bypass","year":"2018"},"n_packages":132,"n_references":19,"next":{"headline":"Other in n/a","id":"CVE-2018-16396"},"packages":[{"ecosystem":"RubyGems","fixed":["2.0.9"],"introduced":["0"],"last_affected":[],"package":"openssl","purl":null,"source":"GHSA-mmrq-6999-72v8"},{"ecosystem":"RubyGems","fixed":["2.0.9"],"introduced":["0"],"last_affected":[],"package":"openssl","purl":"pkg:gem/openssl","source":"GHSA-mmrq-6999-72v8"},{"ecosystem":"RubyGems","fixed":["2.1.2"],"introduced":["2.1.0"],"last_affected":[],"package":"openssl","purl":null,"source":"GHSA-mmrq-6999-72v8"},{"ecosystem":"RubyGems","fixed":["2.1.2"],"introduced":["2.1.0"],"last_affected":[],"package":"openssl","purl":"pkg:gem/openssl","source":"GHSA-mmrq-6999-72v8"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby","purl":"pkg:rpm/redhat/ruby","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-debuginfo","purl":"pkg:rpm/redhat/ruby-debuginfo","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-devel","purl":"pkg:rpm/redhat/ruby-devel","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-doc","purl":"pkg:rpm/redhat/ruby-doc","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-irb","purl":"pkg:rpm/redhat/ruby-irb","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-libs","purl":"pkg:rpm/redhat/ruby-libs","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-tcltk","purl":"pkg:rpm/redhat/ruby-tcltk","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.2.0-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-bigdecimal","purl":"pkg:rpm/redhat/rubygem-bigdecimal","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:0.4.2-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-io-console","purl":"pkg:rpm/redhat/rubygem-io-console","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:1.7.7-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-json","purl":"pkg:rpm/redhat/rubygem-json","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:4.3.2-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-minitest","purl":"pkg:rpm/redhat/rubygem-minitest","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.0-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-psych","purl":"pkg:rpm/redhat/rubygem-psych","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:0.9.6-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-rake","purl":"pkg:rpm/redhat/rubygem-rake","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:4.0.0-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-rdoc","purl":"pkg:rpm/redhat/rubygem-rdoc","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.14.1-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygems","purl":"pkg:rpm/redhat/rubygems","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:2.0.14.1-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygems-devel","purl":"pkg:rpm/redhat/rubygems-devel","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby","purl":"pkg:rpm/redhat/ruby","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-debuginfo","purl":"pkg:rpm/redhat/ruby-debuginfo","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-devel","purl":"pkg:rpm/redhat/ruby-devel","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-doc","purl":"pkg:rpm/redhat/ruby-doc","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-irb","purl":"pkg:rpm/redhat/ruby-irb","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-libs","purl":"pkg:rpm/redhat/ruby-libs","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-tcltk","purl":"pkg:rpm/redhat/ruby-tcltk","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.2.0-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-bigdecimal","purl":"pkg:rpm/redhat/rubygem-bigdecimal","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:0.4.2-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-io-console","purl":"pkg:rpm/redhat/rubygem-io-console","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:1.7.7-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-json","purl":"pkg:rpm/redhat/rubygem-json","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:4.3.2-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-minitest","purl":"pkg:rpm/redhat/rubygem-minitest","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.0-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-psych","purl":"pkg:rpm/redhat/rubygem-psych","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:0.9.6-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-rake","purl":"pkg:rpm/redhat/rubygem-rake","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:4.0.0-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygem-rdoc","purl":"pkg:rpm/redhat/rubygem-rdoc","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.14.1-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygems","purl":"pkg:rpm/redhat/rubygems","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:2.0.14.1-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"rubygems-devel","purl":"pkg:rpm/redhat/rubygems-devel","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby","purl":"pkg:rpm/redhat/ruby","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-debuginfo","purl":"pkg:rpm/redhat/ruby-debuginfo","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-devel","purl":"pkg:rpm/redhat/ruby-devel","source":"RHSA-2018:3738"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:2.0.0.648-34.el7_6"],"introduced":["0"],"last_affected":[],"package":"ruby-doc","purl":"pkg:rpm/redhat/ruby-doc","source":"RHSA-2018:3738"}],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2018-16393"},"products":["n/a"],"published":"2018-11-16","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Flawed certificate comparison in Ruby's OpenSSL allows accepting illegitimate certificates, bypassing security checks for signing or encryption.","url":"https://insights.sbomify.com/CVE-2018-16395/"}