Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Gnutls | 1.0.17 |
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
FAQ
What is CVE-2006-4790?
CVE-2006-4790 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 attacke...
How severe is CVE-2006-4790?
CVE-2006-4790 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2006-4790?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Gnutls.