CVE-2016-0787

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
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."
Overview
  • CVE ID
  • CVE-2016-0787
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2016-04-13T17:59:10
  • Last Modified Date
  • 2018-10-30T16:27:35
Weakness Enumerations
CWE URL
CWE-200 http://cwe.mitre.org/data/definitions/200.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:* 1 OR 1.6.0
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177980.html
https://www.libssh2.org/CVE-2016-0787.patch Patch
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178573.html
http://www.debian.org/security/2016/dsa-3487
http://lists.opensuse.org/opensuse-updates/2016-03/msg00008.html
https://www.libssh2.org/adv_20160223.html Vendor Advisory
https://security.gentoo.org/glsa/201606-12 Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10156
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
https://bto.bluecoat.com/security-advisory/sa120
http://www.securityfocus.com/bid/82514
https://puppet.com/security/cve/CVE-2016-0787
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-0787
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0787
History
Created Old Value New Value Data Type Notes
2022-05-10 17:56:02 Added to TrackCVE
2022-12-02 08:59:12 2016-04-13T17:59Z 2016-04-13T17:59:10 CVE Published Date updated
2022-12-02 08:59:12 2018-10-30T16:27:35 CVE Modified Date updated
2022-12-02 08:59:12 Modified Vulnerability Status updated