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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.win:def:80723
[Eng]
Version
1
Class
vulnerability
ALTXid
375661
Language
Russian
Severity
High
Title
Уязвимость в NoMachine до 7.7.4 (CVE-2021-42977)
Description
Целочисленное переполнение в NoMachine до 7.7.4 позволяет локальным злоумышленникам выполнить произвольный код в режиме ядра и вызвать отказ в обслуживании (повреждение памяти и падение ОС) через специально сформированный I/O Request Packet.
Family
windows
Product
NoMachine
Reference
CVE: CVE-2021-42977
CVE: CVE-2021-42977
Id:
CVE-2021-42977
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42977
Comment
: NoMachine Enterprise Desktop is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop 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.
CVSSv2 Score:
7.2
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSSv3 Score:
8.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
CHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE:
190 (Integer Overflow or Wraparound)
References:
https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/ (MISC)
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