Heap-Based Buffer Overflow Vulnerability in QTS and QuTS hero

Summary

A heap-based buffer overflow vulnerability has been reported to affect QNAP NAS devices that have Apple File Protocol (AFP) enabled in QTS or QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary code.

We have already fixed this vulnerability in the following versions of QTS and QuTS hero:

• QTS 5.0.0.1808 build 20211001 and later
• QTS 4.5.4.1800 build 20210923 and later
• QTS 4.3.6.1831 build 20211019 and later
• QTS 4.3.3.1799 build 20211008 and later
• QuTS hero h5.0.0.1844 build 20211105 and later
• QuTS hero h4.5.4.1813 build 20211006 and later
• QuTScloud c4.5.7.1864 build 20211126 and later

Recommendation

To secure your device, we recommend regularly updating your system to the latest version to benefit from vulnerability fixes. You can check the product support status to see the latest updates available to your NAS model.

Updating QTS or QuTS hero

1. Log on to QTS or QuTS hero as administrator.
2. Go to Control Panel > System > Firmware Update.
3. Under Live Update, click Check for Update.
   QTS or QuTS hero downloads and installs the latest available update.

Tip: You can also download the update from the QNAP website. Go to Support > Download Center and then perform a manual update for your specific device.