CVE-2021-20704: Buffer Overflow
First published: Tue Nov 02 2021(Updated: )
Buffer overflow vulnerability in the compatible API with previous versions CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
Credit: vultures@jpcert.or.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nec Clusterpro X | >=1.0<=4.3 | |
| Nec Clusterpro X Singleserversafe | >=1.0<=4.3 | |
| Nec Expresscluster X | >=1.0<=4.3 | |
| Nec Expresscluster X Singleserversafe | >=1.0<=4.3 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20704?
CVE-2021-20704 is a buffer overflow vulnerability found in various NEC software products, including CLUSTERPRO X 4.3 and EXPRESSCLUSTER X 4.3 for Windows.
How severe is CVE-2021-20704?
CVE-2021-20704 has a severity rating of 9.8, which is considered critical.
Which software versions are affected by CVE-2021-20704?
CLUSTERPRO X 4.3 and earlier, EXPRESSCLUSTER X 4.3 and earlier, CLUSTERPRO X 4.3 SingleServerSafe and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe and earlier are affected by CVE-2021-20704.
How can an attacker exploit CVE-2021-20704?
An attacker can exploit CVE-2021-20704 by triggering a buffer overflow in the compatible API with previous versions of the affected software products.
Where can I find more information about CVE-2021-20704?
You can find more information about CVE-2021-20704 at the following link: [CVE-2021-20704](https://jpn.nec.com/security-info/secinfo/nv21-015_en.html).
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- vendor/nec
- canonical/nec clusterpro x
- version/nec clusterpro x/1.0
- version/nec clusterpro x/4.3
- canonical/nec clusterpro x singleserversafe
- version/nec clusterpro x singleserversafe/1.0
- version/nec clusterpro x singleserversafe/4.3
- canonical/nec expresscluster x
- version/nec expresscluster x/1.0
- version/nec expresscluster x/4.3
- canonical/nec expresscluster x singleserversafe
- version/nec expresscluster x singleserversafe/1.0
- version/nec expresscluster x singleserversafe/4.3