135673 : [GLSA-200902-02] OpenSSL: Certificate Validation Error

Risk 3 : Gentoo Local Checks

The remote host is affected by the vulnerability described in GLSA-200902-02 (OpenSSL: Certificate validation error)

The Google Security Team reported that several functions incorrectly check the result after calling the EVP_VerifyFinal() function, allowing a malformed signature to be treated as a good signature rather than as an error. This issue affects the signature checks on DSA and ECDSA keys used with SSL/TLS. Impact

A remote attacker could exploit this vulnerability and spoof arbitrary names to conduct Man-In-The-Middle attacks and intercept sensitive information. Workaround

There is no known workaround at this time.

Solution:
All OpenSSL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8j"
References:
CVSS Information:
Partial Integrity Impact, Partial Availability Impact
Credit:
Tenable : 2009-12-04
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