Detections
Analytics

Alpine: multiple clamav packages, multiple freshclam packages: security update to 1.4.3-r0

critical Tenable Cloud Security Plugin ID 427903

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A vulnerability in the PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker to
 cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary code on
 an affected device. This vulnerability exists because memory buffers are allocated incorrectly when PDF
 files are processed. An attacker could exploit this vulnerability by submitting a crafted PDF file to be
 scanned by ClamAV on an affected device. A successful exploit could allow the attacker to trigger a buffer
 overflow, likely resulting in the termination of the ClamAV scanning process and a DoS condition on the
 affected software. Although unproven, there is also a possibility that an attacker could leverage the
 buffer overflow to execute arbitrary code with the privileges of the ClamAV process. (CVE-2025-20260)

See Also

https://security.alpinelinux.org/vuln/CVE-2025-20260

Plugin Details

Severity: Critical

ID: 427903

Version: Revision 1.10

Type: Local

Published: 6/26/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.84

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2025-20260

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/18/2025

Reference Information

CVE: CVE-2025-20260

IAVB: 2025-B-0098