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MEDIUM

security flaw

Published Sep 14, 2006

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.

Affected products

Remediation

Red Hat statement

Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

Metrics

Weaknesses (0)

No CWE recorded.

References (34)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Sep 14, 2006
Updated Aug 7, 2024
Reserved Sep 13, 2006
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Important
Public date Sep 8, 2006