CVE-2021-36222

ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/krb5/krb5/releases	Release Notes Third Party Advisory
https://web.mit.edu/kerberos/advisories/	Not Applicable
https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562	Patch Third Party Advisory
https://www.debian.org/security/2021/dsa-4944	Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html	Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20211022-0003/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20211104-0007/	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mit:kerberos_5::::::::
	cpe:2.3:a:mit:kerberos_5::::::::

Configuration 2 (hide)

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

Configuration 3 (hide)

OR	cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vmware_vsphere::
	cpe:2.3:a:netapp:active_iq_unified_manager:-:::::windows::
	cpe:2.3:a:netapp:oncommand_insight:-:::::::*
	cpe:2.3:a:netapp:oncommand_workflow_automation:-:::::::*
	cpe:2.3:a:netapp:snapcenter:-:::::::*

Configuration 4 (hide)

cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*

Information

Published : 2021-07-22 11:15

Updated : 2021-11-28 15:19

NVD link : CVE-2021-36222

Mitre link : CVE-2021-36222

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

netapp

oncommand_workflow_automation
oncommand_insight
active_iq_unified_manager
snapcenter

oracle

mysql_server

debian

debian_linux

mit

kerberos_5

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