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      Last Modified:  01/15/2009

Quick Info

CVE Dictionary Entry:
CVE-2009-0127
Original release date:
01/15/2009
Last revised:
05/13/2016
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
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

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Hyperlink Resource Type Source Name
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511515 External Source MISC http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511515
http://openwall.com/lists/oss-security/2009/01/12/4 External Source MLIST [oss-security] 20090112 CVE Request -- tsqllib, slurm-llnl, libnasl, libcrypt-openssl-dsa-perl, erlang, boinc-client, m2crypto
https://bugzilla.redhat.com/show_bug.cgi?id=479676 Exploit External Source MISC https://bugzilla.redhat.com/show_bug.cgi?id=479676

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.

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