CVE-2009-0025

Medium

Description

BIND 9.6.0, 9.5.1, 9.5.0, 9.4.3, and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

SeverityMedium

CVSS6.8

Exploit probability—

ProductIsc Bind

PublishedJan 7, 2009

First seenJan 7, 2009

How to fix

Vendor advisories

redhat.com/archives/fedora-package-announce/2009-January/msg00393.html

Affected products

Product	Affected versions	Fixed in
isc bind	9.0, 9.0.0, 9.0.1, 9.1, 9.1.0, 9.1.1, 9.1.2, 9.1.3, 9.2.0, 9.2.1, 9.2.2, 9.2.3, 9.2.4, 9.2.5, 9.2.6, 9.2.7, 9.4, 9.4.0, 9.4.1, 9.4.2, 9.4.3, 9.5.0, 9.5.1, 9.6.0	—

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