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)…

published February 15, 2016

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.7th percentile for exploit probability.

CVSS
—
EPSS
84%
Percentile
99.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.83645 · 99.7th percentile
Published
2016-02-15T00:00Z
EPSS history
Timeline
  • 15 FEB 00:00Z
    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)…
    cvelistv5