VulnerabilityModified
CVE-2009-0642
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.
MEDIUM 6.8EPSS 2.64%
Does this matter?
Lower severity and a low EPSS score (2.64%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 2.64% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- ruby-lang/ruby
- Source
- cve@mitre.org
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%3Adef%3A11450
- 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%3Adef%3A11450
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.