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CVE-2023-20032

Published: 17 February 2023

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code. This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
clamav
Launchpad, Ubuntu, Debian
bionic
Released (0.103.8+dfsg-0ubuntu0.18.04.1)
focal
Released (0.103.8+dfsg-0ubuntu0.20.04.1)
jammy
Released (0.103.8+dfsg-0ubuntu0.22.04.1)
kinetic
Released (0.103.8+dfsg-0ubuntu0.22.10.1)
lunar
Released (0.103.8+dfsg-0ubuntu1)
trusty
Released (0.103.8+dfsg-0ubuntu0.14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial
Released (0.103.8+dfsg-0ubuntu0.16.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H