Rapid7 Vulnerability & Exploit Database

SUSE-SR:2006:023:vuln4: gnutls RSA signature forgery

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SUSE-SR:2006:023:vuln4: gnutls RSA signature forgery

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
09/27/2006
Created
07/25/2018
Added
03/10/2008
Modified
11/18/2015

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.

Solution(s)

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