Descripción original
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.
Software afectado
- OpenSSL = 1.0.2= 1.0.2d= 1.0.2c= 1.0.2e= 1.0.2a= 1.0.2b coincidencia exacta
Detalles
- Publicación
- 2016-02-15
- Última modificación
- 2026-06-17
- Vector CVSS
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N- CWE
- CWE-200
Referencias
- cve.org/CVE-2016-0701
- nvd.nist.gov/vuln/detail/CVE-2016-0701
- intothesymmetry.blogspot.com/2016/01/openssl-key-recovery-attack-on-dh-small.html
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- lists.fedoraproject.org/pipermail/package-announce/2016-January/176373.html
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
- www.openssl.org/news/secadv/20160128.txt
- www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- www.securityfocus.com/bid/82233
- www.securityfocus.com/bid/91787
- www.securitytracker.com/id/1034849
- www.ubuntu.com/usn/USN-2883-1
- cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
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