Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2011-4354

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.

Published

2012-01-27T00:55:01.033

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.8 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-310
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl ≤ 0.9.8g Yes
Application openssl openssl 0.9.1c Yes
Application openssl openssl 0.9.2b Yes
Application openssl openssl 0.9.3 Yes
Application openssl openssl 0.9.3a Yes
Application openssl openssl 0.9.4 Yes
Application openssl openssl 0.9.5 Yes
Application openssl openssl 0.9.5 Yes
Application openssl openssl 0.9.5 Yes
Application openssl openssl 0.9.5a Yes
Application openssl openssl 0.9.5a Yes
Application openssl openssl 0.9.5a Yes
Application openssl openssl 0.9.6 Yes
Application openssl openssl 0.9.6 Yes
Application openssl openssl 0.9.6 Yes
Application openssl openssl 0.9.6 Yes
Application openssl openssl 0.9.6a Yes
Application openssl openssl 0.9.6a Yes
Application openssl openssl 0.9.6a Yes
Application openssl openssl 0.9.6a Yes
Application openssl openssl 0.9.6b Yes
Application openssl openssl 0.9.6c Yes
Application openssl openssl 0.9.6d Yes
Application openssl openssl 0.9.6e Yes
Application openssl openssl 0.9.6f Yes
Application openssl openssl 0.9.6g Yes
Application openssl openssl 0.9.6h Yes
Application openssl openssl 0.9.6i Yes
Application openssl openssl 0.9.6j Yes
Application openssl openssl 0.9.6k Yes
Application openssl openssl 0.9.6l Yes
Application openssl openssl 0.9.6m Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7 Yes
Application openssl openssl 0.9.7a Yes
Application openssl openssl 0.9.7b Yes
Application openssl openssl 0.9.7c Yes
Application openssl openssl 0.9.7d Yes
Application openssl openssl 0.9.7e Yes
Application openssl openssl 0.9.7f Yes
Application openssl openssl 0.9.7g Yes
Application openssl openssl 0.9.7h Yes
Application openssl openssl 0.9.7i Yes
Application openssl openssl 0.9.7j Yes
Application openssl openssl 0.9.7k Yes
Application openssl openssl 0.9.7l Yes
Application openssl openssl 0.9.7m Yes
Application openssl openssl 0.9.8 Yes
Application openssl openssl 0.9.8a Yes
Application openssl openssl 0.9.8b Yes
Application openssl openssl 0.9.8c Yes
Application openssl openssl 0.9.8d Yes
Application openssl openssl 0.9.8e Yes
Application openssl openssl 0.9.8f Yes
References