Mandriva Linux Security Advisory 2009-267 - A missing check for the recommended minimum length of the truncated form of HMAC-based XML signatures was found in xmlsec1 prior to 1.2.12. An attacker could use this flaw to create a specially-crafted XML file that forges an XML signature, allowing the attacker to bypass authentication that is based on the XML Signature specification. This update fixes this vulnerability.
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