CVE-2011-4354 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


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References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://crypto.di.uminho.pt/CACE/CT-RSA2012-openssl-src.zip
http://cvs.openssl.org/filediff?f=openssl/crypto/bn/bn_nist.c&v1=1.14&v2=1.21
http://eprint.iacr.org/2011/633
http://marc.info/?t=119271238800004
http://openwall.com/lists/oss-security/2011/12/01/6
http://rt.openssl.org/Ticket/Display.html?id=1593&user=guest&pass=guest
http://www.debian.org/security/2012/dsa-2390
https://bugzilla.redhat.com/show_bug.cgi?id=757909

Weakness Enumeration

CWE-ID CWE Name Source
CWE-310 Cryptographic Issues cwe source acceptance level NIST  

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4354
NVD Published Date:
01/26/2012
NVD Last Modified:
11/06/2012
Source:
MITRE