Executive Summary

Informations
Name CVE-2011-4354 First vendor Publication 2012-01-26
Vendor Cve Last vendor Modification 2012-11-06

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used in stunnel and other products, in certain circumstances involving ECDH or ECDHE cipher suites, uses an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves, which allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4354

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-310 Cryptographic Issues

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:24249
 
Oval ID: oval:org.mitre.oval:def:24249
Title: Vulnerability in OpenSSL before 0.9.8h on 32-bit platforms, allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts
Description: crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used in stunnel and other products, in certain circumstances involving ECDH or ECDHE cipher suites, uses an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves, which allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts.
Family: windows Class: vulnerability
Reference(s): CVE-2011-4354
Version: 3
Platform(s): Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows 7
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows 8
Microsoft Windows 8.1
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Product(s): OpenSSL
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 257

OpenVAS Exploits

Date Description
2012-02-13 Name : Ubuntu Update for openssl USN-1357-1
File : nvt/gb_ubuntu_USN_1357_1.nasl
2012-02-11 Name : Debian Security Advisory DSA 2390-1 (openssl)
File : nvt/deb_2390_1.nasl

Nessus® Vulnerability Scanner

Date Description
2012-02-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1357-1.nasl - Type : ACT_GATHER_INFO
2012-01-16 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2390.nasl - Type : ACT_GATHER_INFO
2011-12-02 Name : The remote web server has multiple SSL-related vulnerabilities.
File : openssl_0_9_8h.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
CONFIRM http://cvs.openssl.org/filediff?f=openssl/crypto/bn/bn_nist.c&v1=1.14&...
http://marc.info/?t=119271238800004
http://rt.openssl.org/Ticket/Display.html?id=1593&user=guest&pass=guest
https://bugzilla.redhat.com/show_bug.cgi?id=757909
DEBIAN http://www.debian.org/security/2012/dsa-2390
MISC http://crypto.di.uminho.pt/CACE/CT-RSA2012-openssl-src.zip
http://eprint.iacr.org/2011/633
MLIST http://openwall.com/lists/oss-security/2011/12/01/6

Alert History

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Date Informations
2024-02-02 01:17:38
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2020-05-23 01:47:32
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2018-08-10 12:02:52
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2016-04-26 21:14:07
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2013-05-10 23:10:36
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