Описание
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
A NULL pointer dereference flaw was found in MIT Kerberos krb5kdc service. An authenticated attacker could use this flaw to cause krb5kdc to dereference a null pointer and crash by making an S4U2Self request, if the restrict_anonymous_to_tgt option was set to true.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | krb5 | Not affected | ||
| Red Hat Enterprise Linux 6 | krb5 | Will not fix | ||
| Red Hat JBoss Enterprise Application Platform 6 | krb5 | Not affected | ||
| Red Hat JBoss Enterprise Application Platform 7 | krb5 | Not affected | ||
| Red Hat JBoss Enterprise Web Server 2 | krb5 | Not affected | ||
| Red Hat JBoss Enterprise Web Server 3 | krb5 | Not affected | ||
| Red Hat Enterprise Linux 7 | krb5 | Fixed | RHSA-2016:2591 | 03.11.2016 |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
3.5 Low
CVSS2
Связанные уязвимости
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
The validate_as_request function in kdc_util.c in the Key Distribution ...
EPSS
5.3 Medium
CVSS3
3.5 Low
CVSS2