High [CVE-2024-3657] 389-ds-base: potential denial of service via specially crafted kerberos as-req request

A flaw was found in 389-ds-base.

A specially-crafted LDAP query can potentially cause a failure on the directory server, leading to a denial of service This vulnerability is categorized as an important severity issue rather than a critical one because, while it can cause a denial of service by stopping the directory service, it does not allow for remote code execution, privilege escalation, or data exfiltration.

The impact is limited to service disruption, which can be mitigated by monitoring and automatic service restarts. Additionally, exploiting this vulnerability requires specific crafted packets, indicating that an attacker would need a certain level of knowledge and access to execute the attack, reducing the likelihood of widespread exploitation.

Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-20.

Affected Red Hat products: Red Hat Directory Server 11.5 E4S for RHEL 8; Red Hat Directory Server 11.7 for RHEL 8; Red Hat Directory Server 11.8 for RHEL 8; Red Hat Directory Server 11.9 for RHEL 8; Red Hat Directory Server 12.2 EUS for RHEL 9; Red Hat Directory Server 12.4 for RHEL 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.8 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.2 Extended Update Support; Red Hat Enterprise Linux 6.