CVE-2009-0642

Ruby 1.8 and 1.9 - Improper Certificate Validation in OCSP Verification

Title source: llm
STIX 2.1

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.

References (12)

Core 12
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/35937
Exploit x_refsource_confirm
http://redmine.ruby-lang.org/issues/show/1091
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/48761
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2009-1140.html
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-805-1
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/33769
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1022505
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11450
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/35699
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:193
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/33750

Scores

EPSS 0.0264
EPSS Percentile 83.7%

Details

CWE
CWE-287
Status published
Products (2)
ruby-lang/ruby 1.8
ruby-lang/ruby 1.9
Published Feb 20, 2009
Tracked Since Feb 18, 2026