CVE-2018-16395

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Source
https://cve.org/CVERecord?id=CVE-2018-16395
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-16395.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-16395
Aliases
Downstream
Related
Published
2018-11-16T18:29:00.943Z
Modified
2026-04-11T12:07:35.458045Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "14.04"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "16.04"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "18.04"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "18.10"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "8.0"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ]
        },
        {
            "cpe": "cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*",
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "7.4"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/ruby/openssl

Affected ranges

Type
GIT
Repo
https://github.com/ruby/openssl
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
08e12dd9302c1fd517c642bdd7d274e64b354c53
Database specific 
{
    "cpe": "cpe:2.3:a:ruby-lang:openssl:*:*:*:*:*:ruby:*:*",
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.2"
        }
    ]
}

Affected versions

v2.*
v2.0.0
v2.0.0.beta.1
v2.0.0.beta.2
v2.0.1
v2.0.2
v2.1.0
v2.1.0.beta1
v2.1.0.beta2
v2.1.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-16395.json"

Git / github.com/ruby/ruby

Affected ranges

Type
GIT
Repo
https://github.com/ruby/ruby
Events
Introduced
d40ea2afa6ff5a6e5befcf342fb7b6dc58796b20
Last affected
9bfe7fc5cb457c7bc8df96115ee70b9035f5d885
Introduced
d4bb726b713658f56e630b6cf817a0155b6f390e
Last affected
a8197e08f58c5f2e6d32a774866e0e0d58749911
Introduced
4e0a512972cdcbfcd5279f1a2a81ba342ed75b6e
Last affected
85883dc393f60adc3043d28899eff3f1ce53b4a5
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
ce0e3fc1b10d1f5c5ad6bc31ba344904345468a2
Last affected
6f59db30c18cd793cbf6169301158493df7e78e4
Database specific 
{
    "cpe": [
        "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:*",
        "cpe:2.3:a:ruby-lang:ruby:2.6.0:preview2:*:*:*:*:*:*"
    ],
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "2.3.0"
        },
        {
            "last_affected": "2.3.7"
        },
        {
            "introduced": "2.4.0"
        },
        {
            "last_affected": "2.4.4"
        },
        {
            "introduced": "2.5.0"
        },
        {
            "last_affected": "2.5.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.6.0-preview1"
        },
        {
            "last_affected": "2.6.0-preview2"
        }
    ]
}

Affected versions

Other
v1_0_r2
v2_3_7
v2_4_4
v2_5_1
v2_6_0_preview1
v2_6_0_preview2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-16395.json"