Stack-based buffer overflow in QNAP Systems, Inc. products - CVE-2021-34343

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can send a specially crafted request to trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2021-34343

External References

• https://www.qnap.com/en/security-advisory/qsa-21-33

Related Security Bulletins

• Remote code execution in QNAP QTS, QuTS hero, and QuTScloud