CVE-2006-4790

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.

Score

CVSS 2.0 5.0 Medium

Status

Modified - secalert@redhat.com

Published

2006-09-14

Last modified

2024-08-07

Affected products

• Gnutls (Gnu)

References

• 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/oval%3Aorg.mitre.oval%3Adef%3A9937