CVE-2016-0701
moderate-risk
Published 2016-02-15
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.
Do I need to act?
!
27.5% chance of exploitation in next 30 days
EPSS score — higher than 73% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10
Low
NETWORK
/ HIGH complexity
Affected Vendors
References (48)
Vendor Advisory
http://www.openssl.org/news/secadv/20160128.txt
and 28 more references
43
/ 100
moderate-risk
Severity
13/34 · Low
Exploitability
15/34 · Moderate
Exposure
15/34 · Moderate