PT-2020-20634 · Avast · Avast Antivirus For Linux+1

Thierry Zoller · Published 2020-02-28 · Updated 2021-07-21 · CVE-2020-9399

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Avast Antivirus Pro versions prior to 12 definitions 200114-0 Avast Antivirus Pro Plus versions prior to 12 definitions 200114-0 Avast Antivirus for Linux versions prior to 12 definitions 200114-0

Description The issue allows virus-detection bypass via a crafted ZIP archive.

Recommendations For Avast Antivirus Pro versions prior to 12 definitions 200114-0, update to version 12 definitions 200114-0 or later. For Avast Antivirus Pro Plus versions prior to 12 definitions 200114-0, update to version 12 definitions 200114-0 or later. For Avast Antivirus for Linux versions prior to 12 definitions 200114-0, update to version 12 definitions 200114-0 or later.

Fix

Weakness Enumeration

CWE-436

Related Identifiers

CVE-2020-9399

Affected Products

Avast Pro Antivirus

Avast Antivirus For Linux

References · 4

• https://osv.dev/vulnerability/CVE-2020-9399 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-9399 · Security Note
• https://blog.zoller.lu/p/tzo-23-2020-avast-generic-archive.html · Note
• https://seclists.org/fulldisclosure/2020/Feb/35 · Note