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.
La función ec_verify en el archivo kdc/kdc_preauth_ec.c en el Centro de Distribución de Claves (KDC) en MIT Kerberos 5 (también se conoce como krb5) versiones anteriores a 1.18.4 y versiones 1.19.x anteriores a 1.19.2, permite a atacantes remotos causar una desreferencia de puntero NULL y un bloqueo del daemon. Esto ocurre porque un valor de retorno no es manejado apropiadamente en una situación determinada
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
AV:N/AC:L/Au:N/C:N/I:N/A:P
| Access Vector | NETWORK |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | PARTIAL |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-476
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| mit | kerberos_5 | * | <built-in method update of dict object at 0x7fd384624bc0> | Application |
| mit | kerberos_5 | * | <built-in method update of dict object at 0x7fd2db1b7c80> | Application |
| debian | debian_linux | 10.0 | <built-in method update of dict object at 0x7fd3855d8ac0> | Operating System |
| netapp | active_iq_unified_manager | - | <built-in method update of dict object at 0x7fd340be5080> | Application |
| netapp | active_iq_unified_manager | - | <built-in method update of dict object at 0x7fd3697d69c0> | Application |
| netapp | oncommand_insight | - | <built-in method update of dict object at 0x7fd3697d5b80> | Application |
| netapp | oncommand_workflow_automation | - | <built-in method update of dict object at 0x7fd369ee9b40> | Application |
| netapp | snapcenter | - | <built-in method update of dict object at 0x7fd340be5a00> | Application |
| oracle | mysql_server | * | <built-in method update of dict object at 0x7fd36b7d6480> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* |
| Yes | cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* |
| Yes | cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |