CVE-2021-3671

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

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

V2 Legend

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.redhat.com/show_bug.cgi?id=2013080%2C
https://bugzilla.samba.org/show_bug.cgi?id=14770%2C
https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a Patch 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
https://www.debian.org/security/2022/dsa-5287 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C
https://bugzilla.samba.org/show_bug.cgi?id=14770%2C
https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a Patch 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
https://www.debian.org/security/2022/dsa-5287 Third Party Advisory
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:management_services_for_element_software:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
History

21 Nov 2024, 06:22

Type Values Removed Values Added
References () https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C - () https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C -
References () https://bugzilla.samba.org/show_bug.cgi?id=14770%2C - () https://bugzilla.samba.org/show_bug.cgi?id=14770%2C -
References () https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a - Patch, Third Party Advisory () https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a - Patch, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html - Mailing List, Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20221215-0002/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20221215-0002/ - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20230216-0008/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20230216-0008/ - Third Party Advisory
References () https://www.debian.org/security/2022/dsa-5287 - Third Party Advisory () https://www.debian.org/security/2022/dsa-5287 - Third Party Advisory

24 Feb 2023, 17:39

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20230216-0008/ - Third Party Advisory
References (CONFIRM) https://security.netapp.com/advisory/ntap-20221215-0002/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20221215-0002/ - Third Party Advisory
CPE 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:-:*:*:*:*:*:*:*

15 Dec 2022, 19:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20221215-0002/ -

29 Nov 2022, 22:11

Type Values Removed Values Added
References (MLIST) https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html - (MLIST) https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html - Mailing List, Third Party Advisory
References (DEBIAN) https://www.debian.org/security/2022/dsa-5287 - (DEBIAN) https://www.debian.org/security/2022/dsa-5287 - Third Party Advisory
CPE cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

26 Nov 2022, 23:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html -

23 Nov 2022, 04:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2022/dsa-5287 -

19 Oct 2021, 12:17

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 4.0
v3 : 6.5
CPE cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2013080, - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2013080, - Broken Link, Issue Tracking
References (MISC) https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a - (MISC) https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a - Patch, Third Party Advisory
References (MISC) https://bugzilla.samba.org/show_bug.cgi?id=14770, - (MISC) https://bugzilla.samba.org/show_bug.cgi?id=14770, - Broken Link, Issue Tracking

12 Oct 2021, 19:49

Type Values Removed Values Added
New CVE
Information

Published : 2021-10-12 18:15

Updated : 2024-11-21 06:22

NVD link : CVE-2021-3671

Mitre link : CVE-2021-3671

CVE.ORG link : CVE-2021-3671

JSON object : View

Products Affected

debian

  • debian_linux

samba

  • samba

netapp

  • management_services_for_netapp_hci
  • management_services_for_element_software
  • ontap_select_deploy_administration_utility
CWE
CWE-476

NULL Pointer Dereference