CVE-2021-42980: Buffer Overflow
Published Dec 7, 2021
·Updated
NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.
Affected Software
1 affected component
NoMachine Cloud Server>4.0.346<7.7.4
Event History
Dec 7, 2021
CVE Published
via MITRE·07:35 PM
Data Sourced
via MITRE·07:35 PM
Description
Data Sourced
via NVD·08:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the vulnerability ID?
The vulnerability ID is CVE-2021-42980.
2
What is the severity of CVE-2021-42980?
The severity of CVE-2021-42980 is high with a score of 8.8.
3
Which software versions are affected by CVE-2021-42980?
NoMachine Cloud Server versions above 4.0.346 and below 7.7.4 are affected by CVE-2021-42980.
4
What is the impact of CVE-2021-42980?
CVE-2021-42980 allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash).
5
Is there a fix available for CVE-2021-42980?
Yes, updating NoMachine Cloud Server to version 7.7.4 or above will fix the vulnerability.