CVE-2021-20838 XML external entity in Office Server Document Converter
Remote unauthenticated attackers can cause denial of service via XML External Entity attacks in Office Server Document Converter.
- 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-2021-20838?
CVE-2021-20838 is a high-severity vulnerability in Antenna House, Inc. Office Server Document Converter, published on 1 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Office Server Document Converter V7.2MR4 and earlier and V7.1MR7 and earlier allows a remote unauthenticated attacker to conduct an XML External Entity (XXE) attack to cause a denial of service (DoS) condition by processing a specially crafted XML document.
Weakness: CWE-611
Which versions are affected by CVE-2021-20838?
It affects 1 product.
Products include Antennahouse Office Server Document Converter.
How do I fix CVE-2021-20838?
No fix has been published for CVE-2021-20838 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-20838 being exploited?
There is no known exploitation of CVE-2021-20838 in the wild and no public exploit code.
Other vulnerabilities in Antenna House, Inc. Office Server Document Converter
Sources
Also known as GHSA-q423-xqrx-xqpf.