CVE-2020-29652

2020-12-1720:48:54

redhat.com

access.redhat.com

golang

ssh server

null pointer.

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.006

Percentile

79.6%

JSON

A null pointer dereference vulnerability was found in golang. When using the library’s ssh server without specifying an option for GSSAPIWithMICConfig, it is possible for an attacker to craft an ssh client connection using the gssapi-with-mic authentication method and cause the server to panic resulting in a denial of service. The highest threat from this vulnerability is to system availability.