CVE-2006-4339

CVE Details

Release Date:

2006-09-05

Description

OpenSSL before 0.9.7, 0.9.7 before 0.9.7k, and 0.9.8 before 0.9.8c, when using an RSA key with exponent 3, removes PKCS-1 padding before generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents OpenSSL from correctly verifying X.509 and other certificates that use PKCS #1. 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.

See more information about CVE-2006-4339 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	4.3	Base Metrics:	AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector:	Network	Attack Complexity:	Medium
Authentication:	None required	Confidentiality Impact:	Partial
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Enterprise Linux version 4 (openssl)	ELSA-2006-0661	2006-11-30
Oracle Enterprise Linux version 4 (openssl096b)	ELSA-2006-0661	2006-11-30

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team