CVE-2022-32746

A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.

Although versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped in RHEL with the libldb package.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Disabling the AD DC database audit logging prevents the use-after-free from occurring, as that is the only component that will access the original message.