Vulnerability Monitor

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CVE-2016-0701

The DH_check_pub_key function in crypto/dh/dh_check.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman (DH) key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose an inappropriate number, as demonstrated by a number in an X9.42 file.

Published

2016-02-15T02:59:18.013

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 3.7 (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-200
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl 1.0.2 Yes
Application openssl openssl 1.0.2 Yes
Application openssl openssl 1.0.2 Yes
Application openssl openssl 1.0.2 Yes
Application openssl openssl 1.0.2a Yes
Application openssl openssl 1.0.2b Yes
Application openssl openssl 1.0.2c Yes
Application openssl openssl 1.0.2d Yes
Application openssl openssl 1.0.2e Yes
References