Ubuntu.comUB:CVE-2016-8858CVE-2016-8858
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
7.8 High
CVSS2
Access Vector
NETWORK
Access 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
0.784 High
EPSS
Percentile
98.2%
DISPUTED The kex_input_kexinit function in kex.c in OpenSSH 6.x and
7.x through 7.3 allows remote attackers to cause a denial of service
(memory consumption) by sending many duplicate KEXINIT requests. NOTE: a
third party reports that “OpenSSH upstream does not consider this as a
security issue.”
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | DoS is limited to attacker’s connection only, and openssh upstream does not consider this to be a security issue We do not consider this to be a security issue either, marking as ignored |
Related
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
7.8 High
CVSS2
Access Vector
NETWORK
Access 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
0.784 High
EPSS
Percentile
98.2%