National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2009-0127 Detail

Description

** DISPUTED ** M2Crypto does not properly check the return value from the OpenSSL EVP_VerifyFinal, DSA_verify, ECDSA_verify, DSA_do_verify, and ECDSA_do_verify functions, which might allow remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077. NOTE: a Linux vendor disputes the relevance of this report to the M2Crypto product because "these functions are not used anywhere in m2crypto."

Source:  MITRE
Description Last Modified:  01/15/2009

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (01/21/2009)

Red Hat does not consider this to be a security issue. M2Crypto provides python interfaces to multiple OpenSSL functions. Neither of those interfaces is further used by M2Crypto in an insecure way. Additionally, no application shipped in Red Hat Enterprise Linux is known to use affected interfaces provided by M2Crypto. Further details can be found in the following bug report: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-0127#c1

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511515
http://openwall.com/lists/oss-security/2009/01/12/4
https://bugzilla.redhat.com/show_bug.cgi?id=479676 Exploit

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:heikki_toivonen:m2crypto:-:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-0127
NVD Published Date:
01/15/2009
NVD Last Modified:
05/13/2016