CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
82.8%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | ruby-openssl | < any | UNKNOWN |
ubuntu | 14.04 | noarch | ruby1.9.1 | < 1.9.3.484-2ubuntu1.13 | UNKNOWN |
ubuntu | 14.04 | noarch | ruby2.0 | < 2.0.0.484-1ubuntu2.11 | UNKNOWN |
ubuntu | 16.04 | noarch | ruby2.3 | < 2.3.1-2~16.04.11 | UNKNOWN |
ubuntu | 18.04 | noarch | ruby2.5 | < 2.5.1-1ubuntu1.1 | UNKNOWN |
ubuntu | 18.10 | noarch | ruby2.5 | < 2.5.1-5ubuntu4.1 | UNKNOWN |
ubuntu | 19.04 | noarch | ruby2.5 | < 2.5.1-6ubuntu3 | UNKNOWN |
ubuntu | 19.10 | noarch | ruby2.5 | < 2.5.1-6ubuntu3 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2018-16395
nvd.nist.gov/vuln/detail/CVE-2018-16395
security-tracker.debian.org/tracker/CVE-2018-16395
ubuntu.com/security/notices/USN-3808-1
www.cve.org/CVERecord?id=CVE-2018-16395
www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
82.8%