Описание
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.
A vulnerability was found in MIT krb5, where an authenticated attacker can cause a KDC to free the same pointer twice if it can induce a failure in authorization data handling.
Отчет
This vulnerability is rated as an Important because a double-free vulnerability was found in krb5 KDC within the TGS processing logic. The flaw is triggered when an authenticated attacker sends a TGS renew or validate request that induces a failure in authorization data handling. This action causes the same memory pointer to be freed twice, leading to a crash, successful exploitation could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS).
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | krb5 | Not affected | ||
| Red Hat Enterprise Linux 7 | krb5 | Not affected | ||
| Red Hat Enterprise Linux 8 | krb5 | Not affected | ||
| Red Hat Enterprise Linux 9 | krb5 | Fixed | RHSA-2023:6699 | 07.11.2023 |
| Red Hat Enterprise Linux 9 | krb5 | Fixed | RHSA-2023:6699 | 07.11.2023 |
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Дополнительная информация
Статус:
EPSS
8.8 High
CVSS3
Связанные уязвимости
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a ...
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.
EPSS
8.8 High
CVSS3