The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-4073 from the MITRE CVE dictionary dictionary and NIST NVD.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 3.0 (ruby193-ruby) | RHSA-2013:1103 | 2013-07-23 |
| Red Hat Enterprise Linux 6 (ruby) | RHSA-2013:1090 | 2013-07-17 |
| Red Hat Enterprise Linux 5 (ruby) | RHSA-2013:1090 | 2013-07-17 |
| RHOSE Client 1.2 (ruby193-ruby) | RHSA-2013:1137 | 2013-08-05 |
| Platform | Package | State |
|---|---|---|
| Red Hat Subscription Asset Manager 1 | ruby193-ruby | Will not fix |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux | ruby193-ruby | Will not fix |
| Red Hat JBoss Enterprise SOA Platform 5 | jruby | Will not fix |
| Red Hat JBoss Enterprise SOA Platform 4.3 | jruby | Will not fix |
| Red Hat Enterprise Linux 7 | ruby | Not affected |
Vulmon