Vulnerability Name:

CCN-119832

Published:2016-12-19
Updated:2016-12-19
Summary:OpenSSH is vulnerable to a denial of service. By sending multiple KEXINIT messages, a remote authenticated attacker could exploit this vulnerability to cause a denial of service.
CVSS v3 Severity:6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: XF
Type: UNKNOWN
openssh-kexinit-dos(119832)

Source: CCN
Type: OpenSSH Web site
Changes since OpenSSH 7.3

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:openbsd:openssh:7.3:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    openbsd openssh 7.3