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CVE
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CVE-2016-0787

Date: (C)2016-04-28   (M)2017-10-12
 
CVSS Score: 4.3Access Vector: NETWORK
Exploitability Subscore: 8.6Access Complexity: MEDIUM
Impact Subscore: 2.9Authentication: NONE
 Confidentiality: PARTIAL
 Integrity: NONE
 Availability: NONE











The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly truncates secrets to 128 or 256 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."

Reference:
BID-82514
DSA-3487
FEDORA-2016-215a2219b1
FEDORA-2016-7942ee2cc5
GLSA-201606-12
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
https://bto.bluecoat.com/security-advisory/sa120
https://kc.mcafee.com/corporate/index?page=content&id=SB10156
https://www.libssh2.org/CVE-2016-0787.patch
https://www.libssh2.org/adv_20160223.html
openSUSE-SU-2016:0639

CPE    5
cpe:/o:fedoraproject:fedora:22
cpe:/o:novell:opensuse:13.2
cpe:/o:fedoraproject:fedora:23
cpe:/o:debian:debian_linux:8.0
...
CWE    1
CWE-200
OVAL    9
oval:org.secpod.oval:def:110232
oval:org.secpod.oval:def:1600379
oval:org.secpod.oval:def:1501392
oval:org.secpod.oval:def:1501391
...

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