CVE-2024-21507: mysql2 vulnerability

What is known

Versions of the package mysql2 before 3.9.3 are vulnerable to Improper Input Validation through the keyFromFields function, resulting in cache poisoning. An attacker can inject a colon (:) character within a value of the attacker-crafted key.

Business impact

Successful exploitation of CVE-2024-21507, a medium vulnerability (CVSS 6.5) affecting mysql2, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.

Recommended administrator action

Confirm whether mysql2 is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.

Sources

• NVD
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