medium
5
CWE
NVD-CWE-Other
Advisory Published
Updated

CVE-2006-4790

First published: Thu Sep 14 2006(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
GNU GnuTLS=1.2.8
GNU GnuTLS=1.1.14
GNU GnuTLS=1.4.1
GNU GnuTLS=1.2.11
GNU GnuTLS=1.1.21
GNU GnuTLS=1.0.20
GNU GnuTLS=1.2.5
GNU GnuTLS=1.0.17
GNU GnuTLS=1.2.4
GNU GnuTLS=1.3.1
GNU GnuTLS=1.0.24
GNU GnuTLS=1.0.21
GNU GnuTLS=1.1.20
GNU GnuTLS=1.2.10
GNU GnuTLS=1.1.22
GNU GnuTLS=1.4.0
GNU GnuTLS=1.3.4
GNU GnuTLS=1.0.19
GNU GnuTLS=1.2.1
GNU GnuTLS=1.1.19
GNU GnuTLS=1.1.18
GNU GnuTLS=1.2.8.1a1
GNU GnuTLS=1.2.2
GNU GnuTLS=1.2.0
GNU GnuTLS=1.0.18
GNU GnuTLS=1.2.7
GNU GnuTLS=1.3.2
GNU GnuTLS=1.0.25
GNU GnuTLS=1.1.15
GNU GnuTLS=1.0.23
GNU GnuTLS=1.3.0
GNU GnuTLS=1.3.5
GNU GnuTLS=1.1.23
GNU GnuTLS=1.2.3
GNU GnuTLS=1.2.6
GNU GnuTLS=1.2.9
GNU GnuTLS=1.1.16
GNU GnuTLS=1.0.22
GNU GnuTLS=1.1.17
GNU GnuTLS=1.3.3

Remedy

http://www.gnu.org/software/gnutls/security.html

Remedy

http://www.redhat.com/support/errata/RHSA-2006-0680.html

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2006-4790?

    The severity of CVE-2006-4790 is classified as moderate as it allows potential forgery of signatures using vulnerable RSA keys.

  • How do I fix CVE-2006-4790?

    To fix CVE-2006-4790, update GnuTLS to a version greater than 1.4.4 where the vulnerability has been addressed.

  • Which versions of GnuTLS are affected by CVE-2006-4790?

    CVE-2006-4790 affects GnuTLS versions prior to 1.4.4, including all versions from 1.0.17 to 1.4.1.

  • Can CVE-2006-4790 be exploited remotely?

    Yes, CVE-2006-4790 can be exploited remotely, allowing attackers to forge signatures that could compromise system integrity.

  • What does CVE-2006-4790 affect in GnuTLS?

    CVE-2006-4790 affects the hash generation process when using RSA keys with exponent 3, leading to improper handling of excess data.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203