ZDI-21-880: MySQL memcached Plugin Integer Underflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of MySQL. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of Append and Prepend commands in the memcached plugin. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-21-880?
ZDI-21-880 is considered a critical vulnerability due to its ability to allow remote code execution without authentication.
How do I fix ZDI-21-880?
To mitigate ZDI-21-880, update MySQL to the latest version available from Oracle to patch the vulnerability.
Which versions of MySQL are affected by ZDI-21-880?
ZDI-21-880 affects certain versions of MySQL that contain the vulnerable memcached plugin.
Can ZDI-21-880 be exploited without authentication?
Yes, ZDI-21-880 can be exploited by remote attackers without requiring authentication.
What is the potential impact of ZDI-21-880?
The impact of ZDI-21-880 includes the potential for remote code execution, which could compromise the integrity and confidentiality of the affected system.