PT-2023-2531 · Avast+1 · Avast Antivirus+1

Published 2023-04-03 · Updated 2023-05-18 · CVE-2023-1586

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Avast Antivirus versions prior to 22.11 AVG Antivirus versions prior to 22.11

Description The issue is related to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process, leading to arbitrary file creation. This vulnerability is associated with synchronization errors when using a shared resource. Exploitation of the vulnerability may allow an attacker to launch an arbitrary file.

Recommendations For Avast Antivirus versions prior to 22.11, update to version 22.11 to resolve the issue. For AVG Antivirus versions prior to 22.11, update to version 22.11 to resolve the issue. As a temporary workaround, consider restricting the restore process in the antivirus software until a patch is available.

Fix

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

BDU:2023-02330

CVE-2023-1586

Affected Products

Avg Antivirus

Avast Antivirus

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2023-1586 · Security Note
• https://bdu.fstec.ru/vul/2023-02330 · Security Note
• https://osv.dev/vulnerability/CVE-2023-1586 · Vendor Advisory
• https://support.norton.com/sp/static/external/tools/security-advisories.html · Note
• https://t.me/cibsecurity/62477 · Telegram Post
• https://t.me/cvenotify/49543 · Telegram Post
• https://t.me/cybersecuritytechnologies/8312 · Telegram Post
• https://t.me/freedomf0x/19748 · Telegram Post
• https://t.me/pentestingnews/36055 · Telegram Post