CVE-2021-3671

A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.samba.org/show_bug.cgi?id=14770,	Broken Link Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2013080,	Broken Link Issue Tracking
https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a	Patch Third Party Advisory
https://www.debian.org/security/2022/dsa-5287	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20221215-0002/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20230216-0008/	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:samba:samba::::::::
	cpe:2.3:a:samba:samba::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:::::::*
	cpe:2.3:a:netapp:management_services_for_element_software:-:::::::*
	cpe:2.3:a:netapp:management_services_for_netapp_hci:-:::::::*

Information

Published : 2021-10-12 11:15

Updated : 2023-02-24 09:39

NVD link : CVE-2021-3671

Mitre link : CVE-2021-3671

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

netapp

ontap_select_deploy_administration_utility
management_services_for_element_software
management_services_for_netapp_hci

samba

samba

debian

debian_linux

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