CVE-2022-21355: Oracle MySQL Cluster Data Node Out-Of-Bounds Read Information Disclosure Vulnerability
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 allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account.
Other sources
Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: General). Supported versions that are affected are 7.4.34 and prior, 7.5.24 and prior, 7.6.20 and prior and 8.0.27 and prior. Difficult to exploit vulnerability allows high privileged attacker with access to the physical communication segment attached to the hardware where the MySQL Cluster executes to compromise MySQL Cluster. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Cluster accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Cluster. CVSS 3.1 Base Score 2.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:L).
Affected Software
Event History
Frequently Asked Questions
What is CVE-2022-21355?
CVE-2022-21355 is a vulnerability in the MySQL Cluster product of Oracle MySQL that allows an attacker with high privileges and physical access to disclose sensitive information through an out-of-bounds read.
Which versions of Oracle MySQL Cluster are affected by CVE-2022-21355?
Versions 7.4.34 and prior, 7.5.24 and prior, 7.6.20 and prior, and 8.0.27 and prior of Oracle MySQL Cluster are affected by CVE-2022-21355.
How severe is CVE-2022-21355?
CVE-2022-21355 has a severity score of 6.5, which is considered medium.
How can an attacker exploit CVE-2022-21355?
Exploiting CVE-2022-21355 requires the attacker to have high privileges and physical access to the system.
Is there a fix available for CVE-2022-21355?
Yes, Oracle has released patches to address CVE-2022-21355. It is recommended to update to the latest version of Oracle MySQL Cluster.