CVE-2008-5077

Medium

Description

OpenSSL 0.9.8i and earlier does not properly check the return value from the EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys.

SeverityMedium
CVSS5.8
Exploit probability—
ProductOpenssl
PublishedJan 7, 2009
First seenJan 7, 2009

How to fix

Vendor advisories

Affected products

ProductAffected versionsFixed in
openssl opensslv ≤ 0.9.8h, 0.9.1c, 0.9.2b, 0.9.3, 0.9.3a, 0.9.4, 0.9.5, 0.9.5a, 0.9.6, 0.9.6a, 0.9.6b, 0.9.6c, 0.9.6d, 0.9.6e, 0.9.6f, 0.9.6g, 0.9.6h, 0.9.6i, 0.9.6j, 0.9.6k, 0.9.6l, 0.9.6m, 0.9.7, 0.9.7a, 0.9.7b, 0.9.7c, 0.9.7d, 0.9.7e, 0.9.7f, 0.9.7g, 0.9.7h, 0.9.7i, 0.9.7j, 0.9.7k, 0.9.7l, 0.9.8, 0.9.8a, 0.9.8b, 0.9.8c, 0.9.8d, 0.9.8e, 0.9.8f, 0.9.8g—

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