CVE-2016-0701: openssl
Vulnerability summary
CVE-2016-0701 is a low (CVSS 3.7) vulnerability in openssl. EPSS estimates a 83.64% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 15-02-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · DebianEcosystem advisory · calculated3.7LowCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
83.64%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
0.00 pp
From 83.64% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- openssl< 1.0.2f-2
Openssl1 product
- opensslEOL1.0.2 | 1.0.2:beta1 | 1.0.2:beta2 | 1.0.2:beta3 | 1.0.2a | 1.0.2b | 1.0.2c | 1.0.2d | 1.0.2e
2 vendors · 2 products
References
25 links- www.securitytracker.com/id/1034849VDB Entry
- security.gentoo.org/glsa/201601-05Vendor Advisory
- www.securityfocus.com/bid/82233VDB Entry
- www.securityfocus.com/bid/91787VDB Entry
- www.kb.cert.org/vuls/id/257823Third Party Advisory
- www.ubuntu.com/usn/USN-2883-1Vendor Advisory
Show all 25 references
- www.openssl.org/news/secadv/20160128.txtVendor Advisory