CVE-2009-0642

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Summary

CVECVE-2009-0642
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-02-20 06:47:48 UTC
Updated2026-04-23 00:35:47 UTC
Descriptionext/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.

Risk And Classification

Primary CVSS: v2.0 6.8 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:P

Problem Types: CWE-287 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ruby-lang Ruby 1.8 All All All
Application Ruby-lang Ruby 1.9 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
Security Advisory SA35937 - Ubuntu update for Ruby - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
USN-805-1: Ruby vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Red Hat update for ruby - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Ruby "OCSP_basic_verify()" Certificate Validation Vulnerability - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Ruby OCSP_basic_verify() Validation Flaw Lets Remote Users Conduct Certificate Spoofing Attacks - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
#513528 - ruby1.9: Not properly checking the return value of OCSP_basic_verify - Debian Bug report logs af854a3a-2127-422b-91ae-364da2661108 bugs.debian.org
Support / Security / Advisories / / MDVSA-2009:193 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
Backport87 - Backport #1091: possible bad handling of return value of OCSP_basic_verify in ext/openssl/ossl_ocsp.c - Ruby Issue Tracking System af854a3a-2127-422b-91ae-364da2661108 redmine.ruby-lang.org Exploit
Ruby 'OCSP_basic_verify()' X.509 Certificate Verification Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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