CVE-2021-38687 Stack Overflow Vulnerability in Surveillance Station
Attackers can execute arbitrary code on QNAP NAS devices via a stack buffer overflow in Surveillance Station.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-38687?
CVE-2021-38687 is a high-severity memory corruption vulnerability in QNAP Systems Inc. Surveillance Station, published on 29 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A stack buffer overflow vulnerability has been reported to affect QNAP NAS running Surveillance Station. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of Surveillance Station: QTS 5.0.0 (64 bit): Surveillance Station 5.2.0.4.2 ( 2021/10/26 ) and later QTS 5.0.0 (32 bit): Surveillance Station 5.2.0.3.2 ( 2021/10/26 ) and later QTS 4.3.6 (64 bit): Surveillance Station 5.1.5.4.6 ( 2021/10/26 ) and later QTS 4.3.6 (32 bit): Surveillance Station 5.1.5.3.6 ( 2021/10/26 ) and later QTS 4.3.3: Surveillance Station 5.1.5.3.6 ( 2021/10/26 ) and later
Weakness: CWE-120
Which versions are affected by CVE-2021-38687?
It affects 1 product.
Products include Qnap Surveillance Station.
How do I fix CVE-2021-38687?
No fix has been published for CVE-2021-38687 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-38687 being exploited?
There is no known exploitation of CVE-2021-38687 in the wild and no public exploit code.
Other vulnerabilities in QNAP Systems Inc. Surveillance Station
Sources
Also known as GHSA-8397-33w7-cmhc.