4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.7 Medium
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
77.6%
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.”
CPE | Name | Operator | Version |
---|---|---|---|
fedoraproject:fedora | fedoraproject fedora | eq | 22 |
fedoraproject:fedora | fedoraproject fedora | eq | 23 |
lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
www.debian.org/security/2016/dsa-3487
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
www.securityfocus.com/bid/82514
bto.bluecoat.com/security-advisory/sa120
kc.mcafee.com/corporate/index?page=content&id=SB10156
puppet.com/security/cve/CVE-2016-0787
security.gentoo.org/glsa/201606-12
www.libssh2.org/adv_20160223.html
www.libssh2.org/CVE-2016-0787.patch
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.7 Medium
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
77.6%