medium
5.8
CWE
310
Advisory Published
CVE Published
Updated

CVE-2011-4354

First published: Mon Nov 28 2011(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
OpenSSL OpenSSL<=0.9.8g
OpenSSL OpenSSL=0.9.1c
OpenSSL OpenSSL=0.9.2b
OpenSSL OpenSSL=0.9.3
OpenSSL OpenSSL=0.9.3a
OpenSSL OpenSSL=0.9.4
OpenSSL OpenSSL=0.9.5
OpenSSL OpenSSL=0.9.5-beta1
OpenSSL OpenSSL=0.9.5-beta2
OpenSSL OpenSSL=0.9.5a
OpenSSL OpenSSL=0.9.5a-beta1
OpenSSL OpenSSL=0.9.5a-beta2
OpenSSL OpenSSL=0.9.6
OpenSSL OpenSSL=0.9.6-beta1
OpenSSL OpenSSL=0.9.6-beta2
OpenSSL OpenSSL=0.9.6-beta3
OpenSSL OpenSSL=0.9.6a
OpenSSL OpenSSL=0.9.6a-beta1
OpenSSL OpenSSL=0.9.6a-beta2
OpenSSL OpenSSL=0.9.6a-beta3
OpenSSL OpenSSL=0.9.6b
OpenSSL OpenSSL=0.9.6c
OpenSSL OpenSSL=0.9.6d
OpenSSL OpenSSL=0.9.6e
OpenSSL OpenSSL=0.9.6f
OpenSSL OpenSSL=0.9.6g
OpenSSL OpenSSL=0.9.6h
OpenSSL OpenSSL=0.9.6i
OpenSSL OpenSSL=0.9.6j
OpenSSL OpenSSL=0.9.6k
OpenSSL OpenSSL=0.9.6l
OpenSSL OpenSSL=0.9.6m
OpenSSL OpenSSL=0.9.7
OpenSSL OpenSSL=0.9.7-beta1
OpenSSL OpenSSL=0.9.7-beta2
OpenSSL OpenSSL=0.9.7-beta3
OpenSSL OpenSSL=0.9.7-beta4
OpenSSL OpenSSL=0.9.7-beta5
OpenSSL OpenSSL=0.9.7-beta6
OpenSSL OpenSSL=0.9.7a
OpenSSL OpenSSL=0.9.7b
OpenSSL OpenSSL=0.9.7c
OpenSSL OpenSSL=0.9.7d
OpenSSL OpenSSL=0.9.7e
OpenSSL OpenSSL=0.9.7f
OpenSSL OpenSSL=0.9.7g
OpenSSL OpenSSL=0.9.7h
OpenSSL OpenSSL=0.9.7i
OpenSSL OpenSSL=0.9.7j
OpenSSL OpenSSL=0.9.7k
OpenSSL OpenSSL=0.9.7l
OpenSSL OpenSSL=0.9.7m
OpenSSL OpenSSL=0.9.8
OpenSSL OpenSSL=0.9.8a
OpenSSL OpenSSL=0.9.8b
OpenSSL OpenSSL=0.9.8c
OpenSSL OpenSSL=0.9.8d
OpenSSL OpenSSL=0.9.8e
OpenSSL OpenSSL=0.9.8f

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