redhat enterprise-linux CVE-2006-4339 vulnerability in Red Hat Products
Published on September 5, 2006

Openssl: openssl: signature forgery via improper pkcs-1 padding removal leading to certificate validation bypass
A flaw was found in OpenSSL. When configured to use an RSA key with exponent 3, OpenSSL improperly removes PKCS-1 padding before generating a hash. This allows remote attackers to forge PKCS #1 v1.5 signatures. Consequently, OpenSSL may incorrectly verify X.509 and other certificates, leading to a bypass of trust and authentication mechanisms.

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Vulnerability Analysis

CVE-2006-4339 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Timeline

Reported to Red Hat.

Made public.

Weakness Type

Improper Verification of Cryptographic Signature

The software does not verify, or incorrectly verifies, the cryptographic signature for data.


Products Associated with CVE-2006-4339

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Red Hat Enterprise Linux (RHEL)
 
Red Hat Network Satellite
 
Red Hat Jboss Core Services
 
Red Hat Openshift
 

Affected Versions

Red Hat Enterprise Linux 3: Red Hat Enterprise Linux 3: Red Hat Enterprise Linux 4: Red Hat Enterprise Linux 4: Red Hat Network Satellite Server v 4.2: Red Hat Network Satellite Server v 4.2: Red Hat Network Satellite Server v 4.2 (RHEL3): Red Hat Network Satellite Server v 4.2 (RHEL3): Red Hat Network Satellite Server v 5.0: Red Hat Network Satellite Server v 5.0: Red Hat Network Satellite Server v 5.1: Red Hat Network Satellite Server v 5.1: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 6: Red Hat Enterprise Linux 7: Red Hat Enterprise Linux 7: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat JBoss Core Services: Red Hat OpenShift Container Platform 4: Red Hat OpenShift Container Platform 4:

Exploit Probability

EPSS
3.95%
Percentile
90.41%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.