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
2026-05-15T12:03:27.892252722Z
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": [
        {
            "source": "CPE_FIELD",
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
                {
                    "last_affected": "14.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "last_affected": "18.10"
                }
            ],
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "last_affected": "8.0"
                },
                {
                    "last_affected": "9.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ]
        },
        {
            "source": "CPE_FIELD",
            "vendor_product": "redhat:enterprise_linux",
            "extracted_events": [
                {
                    "last_affected": "7.4"
                }
            ],
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages