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CVE-2016-0701

Disclosure Date: February 15, 2016
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Description

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.

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CVSS V3 Severity and Metrics
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Impact Score:
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Exploitability Score:
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Vector:
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Attack Vector (AV):
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User Interaction (UI):
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Confidentiality (C):
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Integrity (I):
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Availability (A):
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General Information

Vendors

  • openssl

Products

  • openssl 1.0.2,
  • openssl 1.0.2a,
  • openssl 1.0.2b,
  • openssl 1.0.2c,
  • openssl 1.0.2d,
  • openssl 1.0.2e

References

Additional Info

Technical Analysis