Podatność CVE-2018-16395


Publikacja: 2018-11-16

Opis:
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.

Typ:

CWE-noinfo

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
7.5/10
6.4/10
10/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Niska
Nie wymagana
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Częściowy
Częściowy
Częściowy
Affected software
Ruby-lang -> RUBY 
Ruby-lang -> Openssl 
Redhat -> Enterprise linux 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 Referencje:
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
http://www.securitytracker.com/id/1042105
https://access.redhat.com/errata/RHSA-2018:3729
https://access.redhat.com/errata/RHSA-2018:3730
https://access.redhat.com/errata/RHSA-2018:3731
https://access.redhat.com/errata/RHSA-2018:3738
https://access.redhat.com/errata/RHSA-2019:1948
https://access.redhat.com/errata/RHSA-2019:2565
https://hackerone.com/reports/387250
https://lists.debian.org/debian-lts-announce/2018/10/msg00020.html
https://security.netapp.com/advisory/ntap-20190221-0002/
https://usn.ubuntu.com/3808-1/
https://www.debian.org/security/2018/dsa-4332
https://www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395/
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://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released/

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