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Status published
Medium
CVE-2016-0787
The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly...
Vulnerability 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."
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10156
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- https://www.libssh2.org/CVE-2016-0787.patch
- https://www.libssh2.org/adv_20160223.html
- https://puppet.com/security/cve/CVE-2016-0787
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
- https://security.gentoo.org/glsa/201606-12
- http://lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
- https://bto.bluecoat.com/security-advisory/sa120
- http://www.debian.org/security/2016/dsa-3487
- http://www.securityfocus.com/bid/82514
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Affected Vendor
fedoraproject
View all reports →Affected Software
fedora, opensuse, libssh2, debian linux
Vulnerable Versions:
22, 23, 13.2, 0, 7.0, 8.0
Timeline
Official Publish:
April 13th, 2016
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.