CVE-2021-32029: Infoleak
A flaw was found in postgresql. Using an UPDATE ... RETURNING command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
Other sources
PostgreSQL could allow a remote authenticated attacker to obtain sensitive information, caused by an error when using an UPDATE…RETURNING command on a purpose-crafted table. An attacker could exploit this vulnerability to read arbitrary bytes of server memory.
— IBM
Using an UPDATE ... RETURNING on a purpose-crafted partitioned table, an attacker can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can create prerequisite objects and complete this attack at will. A user lacking the CREATE and TEMPORARY privileges on all databases and the CREATE privilege on all schemas typically cannot use this attack at will.
— Red Hat
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the vulnerability ID for this security flaw?
The vulnerability ID for this security flaw is CVE-2021-32029.
What is the severity level of CVE-2021-32029?
The severity level of CVE-2021-32029 is medium.
How can a remote attacker exploit CVE-2021-32029?
A remote authenticated attacker can exploit CVE-2021-32029 by using an UPDATE...RETURNING command on a purpose-crafted table to obtain sensitive information.
Which software products are affected by CVE-2021-32029?
IBM Security Verify Access (up to version 10.0.0), PostgreSQL (versions 11.0 to 11.12), PostgreSQL (versions 12.0 to 12.7), PostgreSQL (versions 13.0 to 13.3), and Redhat Jboss Enterprise Application Platform (version 7.0.0) are affected by CVE-2021-32029.
Where can I find more information about CVE-2021-32029?
You can find more information about CVE-2021-32029 at the following references: [1] [2] [3].