CVE-2020-10860
Avast Antivirus vulnerability analysis and mitigation

Overview

An Arbitrary Memory Address Overwrite vulnerability was discovered in Avast Antivirus before version 20. The vulnerability exists in the aswAvLog Log Library component of the Avast Service (AvastSvc.exe) and was disclosed on April 1, 2020. The vulnerability affects Avast Antivirus installations on Windows operating systems (NVD).

Technical details

The vulnerability is classified as an Out-of-bounds Write (CWE-787) with a CVSS v3.1 Base Score of 7.5 HIGH (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). The issue specifically involves an arbitrary memory address overwrite condition in the aswAvLog Log Library component (NVD, GitHub Advisory).

Impact

When exploited, this vulnerability results in a Denial of Service condition affecting the Avast Service (AvastSvc.exe). The attack can be executed remotely without requiring any privileges or user interaction (NVD).

Mitigation and workarounds

The vulnerability was addressed in Avast Antivirus version 20. Users should upgrade to version 20 or later to mitigate this security issue (NVD).

Additional resources


SourceThis report was generated using AI

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