CVE-2020-20118

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-20118
Buffer Overflow vulnerability in Avast AntiVirus before v.19.7 allows a local attacker to cause a denial of service via a crafted request to the aswSnx.sys driver.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
http://avast.com Vendor Advisory
https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-write Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:*
History

18 Jul 2023, 20:10

Type Values Removed Values Added
CPE cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-120
First Time Avast
Avast antivirus
References (MISC) http://avast.com - (MISC) http://avast.com - Vendor Advisory
References (MISC) https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-write - (MISC) https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-write - Patch, Third Party Advisory

11 Jul 2023, 14:27

Type Values Removed Values Added
New CVE
Information

Published : 2023-07-11 14:15

Updated : 2023-12-10 15:01

NVD link : CVE-2020-20118

Mitre link : CVE-2020-20118

CVE.ORG link : CVE-2020-20118

JSON object : View

Products Affected

avast

  • antivirus
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')