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CVE
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CVE-2016-0701

Date: (C)2016-02-29   (M)2017-11-15
 
CVSS Score: 2.6Access Vector: NETWORK
Exploitability Subscore: 4.9Access Complexity: HIGH
Impact Subscore: 2.9Authentication: NONE
 Confidentiality: PARTIAL
 Integrity: NONE
 Availability: NONE











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.

Reference:
SECTRACK-1034849
BID-82233
BID-91787
FEDORA-2016-527018d2ff
GLSA-201601-05
USN-2883-1
VU#257823
http://intothesymmetry.blogspot.com/2016/01/openssl-key-recovery-attack-on-dh-small.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
http://www.openssl.org/news/secadv/20160128.txt
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://git.openssl.org/?p=openssl.git;a=commit;h=878e2c5b13010329c203f309ed0c8f2113f85648
https://git.openssl.org/?p=openssl.git;a=commit;h=c5b831f21d0d29d1e517d139d9d101763f60c9a2
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03724en_us
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164821
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390893
openSUSE-SU-2016:0637

CPE    9
cpe:/a:openssl:openssl:1.0.2
cpe:/a:openssl:openssl:1.0.2:beta3
cpe:/a:openssl:openssl:1.0.2:beta1
cpe:/a:openssl:openssl:1.0.2:beta2
...
CWE    1
CWE-200
OVAL    3
oval:org.secpod.oval:def:110097
oval:org.secpod.oval:def:702947
oval:org.secpod.oval:def:32716

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