Vulnerability CVE-2020-13657
Published: 2020-06-29

Description:
An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.

Type:

CWE-269

 (Improper Privilege Management)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Avast -> Avg antivirus 
Avast -> Free antivirus 

 References:
https://forum.avast.com/index.php?topic=232423.0
https://forum.avast.com/index.php?topic=234638.0
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