GLSA-200902-02 : OpenSSL: Certificate validation error

medium Nessus Plugin ID 35673
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The remote Gentoo host is missing one or more security-related patches.


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.


All OpenSSL users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/openssl-0.9.8j'

See Also

Plugin Details

Severity: Medium

ID: 35673

File Name: gentoo_GLSA-200902-02.nasl

Version: 1.17

Type: local

Published: 2/13/2009

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 4


Risk Factor: Medium

Base Score: 5.8

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:openssl, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2/12/2009

Reference Information

CVE: CVE-2008-5077

GLSA: 200902-02

CWE: 20