Vulnerability Description
ext/openssl/ossl_ocsp.c in Ruby 1.8 and 1.9 does not properly check the return value from the OCSP_basic_verify function, which might allow remote attackers to successfully present an invalid X.509 certificate, possibly involving a revoked certificate.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ruby-Lang | Ruby | 1.8 |
Related Weaknesses (CWE)
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513528
- http://redmine.ruby-lang.org/issues/show/1091Exploit
- http://secunia.com/advisories/33750
- http://secunia.com/advisories/35699
- http://secunia.com/advisories/35937
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:193
- http://www.redhat.com/support/errata/RHSA-2009-1140.html
- http://www.securityfocus.com/bid/33769
- http://www.securitytracker.com/id?1022505
- http://www.ubuntu.com/usn/USN-805-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48761
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513528
- http://redmine.ruby-lang.org/issues/show/1091Exploit
- http://secunia.com/advisories/33750
FAQ
What is CVE-2009-0642?
CVE-2009-0642 is a vulnerability with a CVSS score of 6.8 (MEDIUM). ext/openssl/ossl_ocsp.c in Ruby 1.8 and 1.9 does not properly check the return value from the OCSP_basic_verify function, which might allow remote attackers to successfully present an invalid X.509 ce...
How severe is CVE-2009-0642?
CVE-2009-0642 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-0642?
Check the references section above for vendor advisories and patch information. Affected products include: Ruby-Lang Ruby.