CVE-2006-4790 Information

Description

verify.c in GnuTLS before 1.4.4 when using an RSA key with exponent 3 does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash which allows remote attackers to forge a PKCS 1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from correctly verifying X.509 and other certificates that use PKCS a variant of CVE-2006-4339.

Reference

http://lists.gnupg.org/pipermail/gnutls-dev/2006-September/001205.html http://lists.gnupg.org/pipermail/gnutls-dev/2006-September/001212.html http://secunia.com/advisories/21937 http://secunia.com/advisories/21942 http://secunia.com/advisories/21973 http://secunia.com/advisories/22049 http://secunia.com/advisories/22080 http://secunia.com/advisories/22084 http://secunia.com/advisories/22097 http://secunia.com/advisories/22226 http://secunia.com/advisories/22992 http://secunia.com/advisories/25762 http://security.gentoo.org/glsa/glsa-200609-15.xml http://securitytracker.com/id?1016844 http://sunsolve.sun.com/search/document.do?assetkey=1-26-102648-1 http://sunsolve.sun.com/search/document.do?assetkey=1-26-102970-1 http://support.avaya.com/elmodocs2/security/ASA-2006-250.htm http://www.debian.org/security/2006/dsa-1182 http://www.gnu.org/software/gnutls/security.html http://www.mandriva.com/security/advisories?name=MDKSA-2006:166 http://www.novell.com/linux/security/advisories/2006_23_sr.html http://www.novell.com/linux/security/advisories/2007_10_ibmjava.html http://www.redhat.com/support/errata/RHSA-2006-0680.html http://www.securityfocus.com/bid/20027 http://www.ubuntu.com/usn/usn-348-1 http://www.vupen.com/english/advisories/2006/3635 http://www.vupen.com/english/advisories/2006/3899 http://www.vupen.com/english/advisories/2007/2289 https://exchange.xforce.ibmcloud.com/vulnerabilities/28953 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9937