Vulnerability Monitor

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CVE-2011-1945

The elliptic curve cryptography (ECC) subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digital Signature Algorithm (ECDSA) is used for the ECDHE_ECDSA cipher suite, does not properly implement curves over binary fields, which makes it easier for context-dependent attackers to determine private keys via a timing attack and a lattice calculation.

Published

2011-05-31T20:55:05.267

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 2.6 (LOW)

CVSSv2 Vector

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

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

4.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-310
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl ≤ 1.0.0d 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
Application openssl openssl 0.9.8g Yes
Application openssl openssl 0.9.8h Yes
Application openssl openssl 0.9.8i Yes
Application openssl openssl 0.9.8j Yes
Application openssl openssl 0.9.8k Yes
Application openssl openssl 0.9.8l Yes
Application openssl openssl 0.9.8m Yes
Application openssl openssl 0.9.8n Yes
Application openssl openssl 0.9.8o Yes
Application openssl openssl 0.9.8p Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0a Yes
Application openssl openssl 1.0.0b Yes
Application openssl openssl 1.0.0c Yes
References