Vulnerability Details CVE-2016-0787
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."
Exploit prediction scoring system (EPSS) score
EPSS Score 0.041
EPSS Ranking 87.9%
CVSS Severity
CVSS v3 Score 5.9
CVSS v2 Score 4.3
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
- http://lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
- http://www.debian.org/security/2016/dsa-3487
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/82514
- https://bto.bluecoat.com/security-advisory/sa120
- https://kc.mcafee.com/corporate/index?page=content&id=SB10156
- https://puppet.com/security/cve/CVE-2016-0787
- https://security.gentoo.org/glsa/201606-12
- https://www.libssh2.org/CVE-2016-0787.patch
- https://www.libssh2.org/adv_20160223.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
- http://lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
- http://www.debian.org/security/2016/dsa-3487
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/82514
- https://bto.bluecoat.com/security-advisory/sa120
- https://kc.mcafee.com/corporate/index?page=content&id=SB10156
- https://puppet.com/security/cve/CVE-2016-0787
- https://security.gentoo.org/glsa/201606-12
- https://www.libssh2.org/CVE-2016-0787.patch
- https://www.libssh2.org/adv_20160223.html
Products affected by CVE-2016-0787
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cpe:2.3:a:libssh2:libssh2:-
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cpe:2.3:a:libssh2:libssh2:0.1
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cpe:2.3:a:libssh2:libssh2:0.10
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cpe:2.3:a:libssh2:libssh2:0.11
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cpe:2.3:a:libssh2:libssh2:0.12
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cpe:2.3:a:libssh2:libssh2:0.13
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cpe:2.3:a:libssh2:libssh2:0.14
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cpe:2.3:a:libssh2:libssh2:0.15
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cpe:2.3:a:libssh2:libssh2:0.16
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cpe:2.3:a:libssh2:libssh2:0.17
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cpe:2.3:a:libssh2:libssh2:0.18
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cpe:2.3:a:libssh2:libssh2:0.3
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cpe:2.3:a:libssh2:libssh2:0.5
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cpe:2.3:a:libssh2:libssh2:0.6
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cpe:2.3:a:libssh2:libssh2:0.7
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cpe:2.3:a:libssh2:libssh2:0.8
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cpe:2.3:a:libssh2:libssh2:1.0
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cpe:2.3:a:libssh2:libssh2:1.1
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cpe:2.3:a:libssh2:libssh2:1.2
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cpe:2.3:a:libssh2:libssh2:1.2.1
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cpe:2.3:a:libssh2:libssh2:1.2.2
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cpe:2.3:a:libssh2:libssh2:1.2.3
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cpe:2.3:a:libssh2:libssh2:1.2.4
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cpe:2.3:a:libssh2:libssh2:1.2.5
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cpe:2.3:a:libssh2:libssh2:1.2.6
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cpe:2.3:a:libssh2:libssh2:1.2.7
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cpe:2.3:a:libssh2:libssh2:1.2.8
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cpe:2.3:a:libssh2:libssh2:1.2.9
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cpe:2.3:a:libssh2:libssh2:1.3.0
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cpe:2.3:a:libssh2:libssh2:1.4.0
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cpe:2.3:a:libssh2:libssh2:1.4.1
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cpe:2.3:a:libssh2:libssh2:1.4.2
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cpe:2.3:a:libssh2:libssh2:1.4.3
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cpe:2.3:a:libssh2:libssh2:1.5.0
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cpe:2.3:a:libssh2:libssh2:1.6.0
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cpe:2.3:o:debian:debian_linux:7.0
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:fedoraproject:fedora:22
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cpe:2.3:o:fedoraproject:fedora:23
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cpe:2.3:o:opensuse:opensuse:13.2