Alpine: multiple clamav packages, multiple freshclam packages: security update to 0.103.2-r0

high Tenable Self-Hosted Container Security Plugin ID 403848

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0
and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an
affected device. The vulnerability is due to improper error handling that may result in an infinite loop.
An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An
exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of
service condition. (CVE-2021-1252)

- A vulnerability in the PDF parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1
could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected
device. The vulnerability is due to improper buffer size tracking that may result in a heap buffer over-
read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An
exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of
service condition. (CVE-2021-1404)

- A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all
prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on
an affected device. The vulnerability is due to improper variable initialization that may result in an
NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected
device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a
denial of service condition. (CVE-2021-1405)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-1252

https://security.alpinelinux.org/vuln/CVE-2021-1404

https://security.alpinelinux.org/vuln/CVE-2021-1405

Plugin Details

Severity: High

ID: 403848

Version: Revision 1.27

Type: Local

Published: 10/31/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2021-1252

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2021-1405

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/8/2021

Reference Information

CVE: CVE-2021-1252, CVE-2021-1404, CVE-2021-1405