CVE-2016-0701
25Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 84%
exploitation probability
84%top 1% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
n/a · n/aReferences
http://intothesymmetry.blogspot.com/2016/01/openssl-key-recovery-attack-on-dh-small.htmlhttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176373.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.htmlhttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfhttps://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=878e2c5b13010329c203f309ed0c8f2113f85648https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=c5b831f21d0d29d1e517d139d9d101763f60c9a2https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03724en_ushttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164821https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390893https://security.gentoo.org/glsa/201601-05https://www.kb.cert.org/vuls/id/257823