CVE-2016-0701

原文の説明

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.

影響を受けるソフトウェア

• OpenSSL = 1.0.2= 1.0.2d= 1.0.2c= 1.0.2e= 1.0.2a= 1.0.2b 完全一致

詳細

公開日

2016-02-15

最終更新

2026-06-17

CVSS ベクター

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-200

参考資料

• 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