CVE-2018-16395
- Source
- https://cve.org/CVERecord?id=CVE-2018-16395
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16395.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-16395
- Aliases
- Downstream
- Related
- Published
- 2018-11-16T18:29:00.943Z
- Modified
- 2026-03-10T14:34:43.682396Z
- 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.
- References
-
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://access.redhat.com/errata/RHSA-2019:1948
- https://lists.debian.org/debian-lts-announce/2018/10/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- https://access.redhat.com/errata/RHSA-2018:3729
- https://access.redhat.com/errata/RHSA-2018:3738
- https://access.redhat.com/errata/RHSA-2019:2565
- https://usn.ubuntu.com/3808-1/
- https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released/
- https://access.redhat.com/errata/RHSA-2018:3731
- https://security.netapp.com/advisory/ntap-20190221-0002/
- https://www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395/
- https://www.debian.org/security/2018/dsa-4332
- http://www.securitytracker.com/id/1042105
- https://access.redhat.com/errata/RHSA-2018:3730
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-3-8-released/
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-4-5-released/
- https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-5-2-released/
- https://hackerone.com/reports/387250
Affected packages
Git / github.com/ruby/openssl
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ruby/openssl
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "versions": [ { "introduced": "0" }, { "fixed": "2.1.2" } ] }
- Type
- GIT
- Repo
- https://github.com/ruby/ruby
- Events
-
IntroducedLast affectedIntroducedLast affectedIntroducedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "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" }, { "introduced": "0" }, { "last_affected": "2.6.0-preview2" } ] }
Affected versions
v2.*
v2.0.0
v2.0.0.beta.1
v2.0.0.beta.2
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.0.9
v2.1.0
v2.1.0.beta1
v2.1.0.beta2
v2.1.1
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16395.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "14.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "16.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.10"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.4"
}
]
}
]