Stack Buffer Overflow Vulnerabilities in QTS, QuTS hero, and QuTScloud

Summary

Two stack buffer overflow vulnerabilities have been reported to affect QNAP devices running QTS, QuTS hero, and QuTScloud. If exploited, these vulnerabilities allow attackers to execute arbitrary code.

We have already fixed these vulnerabilities in the following versions:

• QTS 5.0.0.1716 build 20210701 and later
• QTS 4.5.4.1715 build 20210630 and later
• QTS 4.3.6.1750 build 20210730 and later
• QTS 4.3.3.1693 build 20210624 and later
• QuTS hero h4.5.4.1771 build 20210825 and later
• QuTScloud c4.5.6.1755 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, QuTS hero, or QuTScloud

1. Log on to QTS, QuTS hero, or QuTScloud as administrator.
2. Go to Control Panel > System > Firmware Update.
3. Under Live Update, click Check for Update.
   QTS, QuTS hero, or QuTScloud 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.