CVE-2011-4354

Published: Jan 27, 2012Modified: Apr 29, 2026

5.8

Vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

Exploitability: 8.6 / Impact: 4.9

Source: NVD

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.

Affected (59)

Products: Openssl: Openssl

Openssl

1 product

Openssl

Configuration A

59 vulnerable

Vulnerable Software	Affected Versions
Openssl Openssl	Up to 0.9.8g
Openssl Openssl	Version 0.9.1c
Openssl Openssl	Version 0.9.2b
Openssl Openssl	Version 0.9.3
Openssl Openssl	Version 0.9.3a
Openssl Openssl	Version 0.9.4
Openssl Openssl	Version 0.9.5
Openssl Openssl	Version 0.9.5 beta1
Openssl Openssl	Version 0.9.5 beta2
Openssl Openssl	Version 0.9.5a
Openssl Openssl	Version 0.9.5a beta1
Openssl Openssl	Version 0.9.5a beta2
Openssl Openssl	Version 0.9.6
Openssl Openssl	Version 0.9.6 beta1
Openssl Openssl	Version 0.9.6 beta2
Openssl Openssl	Version 0.9.6 beta3
Openssl Openssl	Version 0.9.6a
Openssl Openssl	Version 0.9.6a beta1
Openssl Openssl	Version 0.9.6a beta2
Openssl Openssl	Version 0.9.6a beta3
Openssl Openssl	Version 0.9.6b
Openssl Openssl	Version 0.9.6c
Openssl Openssl	Version 0.9.6d
Openssl Openssl	Version 0.9.6e
Openssl Openssl	Version 0.9.6f
Openssl Openssl	Version 0.9.6g
Openssl Openssl	Version 0.9.6h
Openssl Openssl	Version 0.9.6i
Openssl Openssl	Version 0.9.6j
Openssl Openssl	Version 0.9.6k
Openssl Openssl	Version 0.9.6l
Openssl Openssl	Version 0.9.6m
Openssl Openssl	Version 0.9.7
Openssl Openssl	Version 0.9.7 beta1
Openssl Openssl	Version 0.9.7 beta2
Openssl Openssl	Version 0.9.7 beta3
Openssl Openssl	Version 0.9.7 beta4
Openssl Openssl	Version 0.9.7 beta5
Openssl Openssl	Version 0.9.7 beta6
Openssl Openssl	Version 0.9.7a
Openssl Openssl	Version 0.9.7b
Openssl Openssl	Version 0.9.7c
Openssl Openssl	Version 0.9.7d
Openssl Openssl	Version 0.9.7e
Openssl Openssl	Version 0.9.7f
Openssl Openssl	Version 0.9.7g
Openssl Openssl	Version 0.9.7h
Openssl Openssl	Version 0.9.7i
Openssl Openssl	Version 0.9.7j
Openssl Openssl	Version 0.9.7k
Openssl Openssl	Version 0.9.7l
Openssl Openssl	Version 0.9.7m
Openssl Openssl	Version 0.9.8
Openssl Openssl	Version 0.9.8a
Openssl Openssl	Version 0.9.8b
Openssl Openssl	Version 0.9.8c
Openssl Openssl	Version 0.9.8d
Openssl Openssl	Version 0.9.8e
Openssl Openssl	Version 0.9.8f