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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
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."
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
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Configuration 1
OR
*cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
Configuration 2
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Configuration 3
OR
*cpe:2.3:o:novell:opensuse:13.2:*:*:*:*:*:*:*
Configuration 4
OR
*cpe:2.3:a:libssh2:libssh2:1.6.0:*:*:*:*:*:*:* (and previous)
Configuration 1
OR
*cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
Configuration 2
OR
*cpe:2.3:o:novell:opensuse:13.2:*:*:*:*:*:*:*
Configuration 3
OR
*cpe:2.3:a:libssh2:libssh2:1.6.0:*:*:*:*:*:*:* (and previous)
Configuration 4
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Changed
Reference Type
https://security.gentoo.org/glsa/201606-12 No Types Assigned
https://security.gentoo.org/glsa/201606-12 Third Party Advisory
CVE Modified by Red Hat, Inc.7/26/2016 10:00:15 PM
Action
Type
Old Value
New Value
Added
Reference
https://security.gentoo.org/glsa/201606-12
Modified Analysis by NIST4/18/2016 11:25:40 AM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Added
CVSS V2
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Added
CWE
CWE-200
Added
CPE Configuration
Configuration 1
OR
*cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
Configuration 2
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Configuration 3
OR
*cpe:2.3:o:novell:opensuse:13.2:*:*:*:*:*:*:*
Configuration 4
OR
*cpe:2.3:a:libssh2:libssh2:1.6.0:*:*:*:*:*:*:* (and previous)
Changed
Reference Type
https://www.libssh2.org/CVE-2016-0787.patch No Types Assigned
https://www.libssh2.org/CVE-2016-0787.patch Patch
Changed
Reference Type
https://www.libssh2.org/adv_20160223.html No Types Assigned