Security ID : QSA-21-40
Out-of-Bounds Read Vulnerability in OpenSSL
Release date : August 30, 2021
CVE identifier : CVE-2021-3712
Affected products: QNAP NAS running QTS, QuTS hero, and QuTScloud
Severity
Medium
Status
Resolved
Summary
An out-of-bounds read vulnerability in OpenSSL has been reported to affect QNAP NAS running QTS, QuTS hero, and QuTScloud. If exploited, the vulnerability allows remote attackers to disclose memory data or execute a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following operating system versions:
- QTS 5.0.0.1785 build 20210908 and later
- QTS 4.5.4.1787 build 20210910 and later
- QuTS hero h5.0.0.1844 build 20211105 and later
- QuTS hero h4.5.4.1813 build 20211006 and later
- QuTScloud c5.0.1.1949 and later
Recommendation
To fix the vulnerability, we recommend updating QTS, QuTS hero, and QuTScloud to their latest versions.
Updating QTS, QuTS hero, or QuTScloud
- Log on to QTS, QuTS hero, or QuTScloud as administrator.
- Go to Control Panel > System > Firmware Update.
- 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.
Revision History:
V1.0 (August 30, 2021) - Published
V2.0 (April 3, 2022) - Security update for all platforms