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

Configurations

Configuration 1 (hide)

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

Information

Published : 2021-10-12 18:15

Updated : 2021-10-19 12:17

NVD link : CVE-2021-3671

Mitre link : CVE-2021-3671

JSON object : View

Products Affected

samba

samba

CWE

CWE-476

NULL Pointer Dereference

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