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CVE-2009-0642

UnknownEPSS 2.64%

Last modified

CVE-2009-0642 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.64% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.64%

83.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Ruby-LangRuby1.8
Ruby-LangRuby1.9

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2009-0642?
Severity scoring for CVE-2009-0642 is pending analysis. The EPSS model estimates a 2.64% probability of exploitation in the next 30 days.
How do I fix CVE-2009-0642?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST