Advisory Details

April 28th, 2022

Oracle MySQL Cluster Data Node Improper Validation of Array Index Information Disclosure Vulnerability

CVE ID	CVE-2022-21486
CVSS SCORE	6.5, AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
AFFECTED VENDORS	Oracle
AFFECTED PRODUCTS	MySQL Cluster
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on affected installations of Oracle MySQL Cluster. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of Data Node jobs. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an array. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account.
ADDITIONAL DETAILS	Oracle has issued an update to correct this vulnerability. More details can be found at: https://www.oracle.com/security-alerts/cpuapr2022.html
DISCLOSURE TIMELINE	2022-02-23 - Vulnerability reported to vendor 2022-04-28 - Coordinated public release of advisory
CREDIT	Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative

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