52194 : Ruby ext/openssl/ossl_ocsp.c OCSP_basic_verify() Function X.509 Certificate Handling Weakness
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Timeline

Disclosure Date
2009-01-29

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-0642" target="_blank">CVE</a>)</em> : 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.

Classification

Location: Local / Remote, Context Dependent
Attack Type: Authentication Management, Cryptographic
Impact: Loss of Integrity
Disclosure: Vendor Verified

Products

Unknown or Incomplete

References

CVE ID: 2009-0642 (see also: NVD)
Secunia Advisory ID: 33750 35699 35937 36298
Bugtraq ID: 33769
ISS X-Force ID: 48761
Vendor Specific News/Changelog Entry: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513528
http://lists.debian.org/debian-security-announce/2009/msg00177.html
http://redmine.ruby-lang.org/issues/show/1091
Other Advisory URL: http://www.ubuntu.com/usn/USN-805-1
RedHat RHSA: https://rhn.redhat.com/errata/RHSA-2009-1140.html

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2009-02-20 | Disagree?

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