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freebsdFreeBSD6ED5C5E3-A840-11E7-B5AF-A4BADB2F4699
HistoryAug 10, 2017 - 12:00 a.m.

FreeBSD -- OpenSSH Denial of Service vulnerability

2017-08-1000:00:00
vuxml.freebsd.org
25

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.045 Low

EPSS

Percentile

92.5%

Problem Description:
There is no limit on the password length.
Impact:
A remote attacker may be able to cause an affected SSH
server to use excessive amount of CPU by sending very long
passwords, when PasswordAuthentication is enabled by the
system administrator.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchfreebsd= 11.1UNKNOWN
FreeBSDanynoarchfreebsd< 11.1_1UNKNOWN

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.045 Low

EPSS

Percentile

92.5%