Описание
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.
A vulnerability was found in the _xdr_kadm5_principal_ent_rec() function in lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (krb5). This issue occurs due to lack of validation in the relationship between n_key_data and the key_data array count, leading to the freeing of uninitialized pointers. This may allow a remote authenticated attacker to send a specially crafted request that causes the kadmind process to crash, resulting in a denial of service (DoS).
Отчет
Remote code execution is unlikely. An attacker with control of a kadmin server can only cause a kadmin client to crash by freeing uninitialized pointers.
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 JBoss Enterprise Application Platform 6 | krb5 | Out of support scope | ||
| 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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Ссылки на источники
Дополнительная информация
Статус:
6.5 Medium
CVSS3
Связанные уязвимости
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.
lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 an ...
6.5 Medium
CVSS3