Detections
Analytics
Amazon Linux 2 : clamav (ALAS-2024-2644)
medium Nessus Plugin ID 208113
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of clamav installed on the remote host is prior to 0.103.12-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2644 advisory.A vulnerability in the PDF parsing module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to an out of bounds read. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. An exploit could allow the attacker to terminate the scanning process. (CVE-2024-20505)
A vulnerability in the ClamD service module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an authenticated, local attacker to corrupt critical system files.The vulnerability is due to allowing the ClamD process to write to its log file while privileged without checking if the logfile has been replaced with a symbolic link. An attacker could exploit this vulnerability if they replace the ClamD log file with a symlink to a critical system file and then find a way to restart the ClamD process. An exploit could allow the attacker to corrupt a critical system file by appending ClamD log messages after restart. (CVE-2024-20506)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update clamav' to update your system.See Also
https://alas.aws.amazon.com/faqs.html
https://alas.aws.amazon.com/cve/html/CVE-2024-20505.html
Plugin Details
Severity: Medium
ID: 208113
File Name: al2_ALAS-2024-2644.nasl
Version: 1.1
Type: local
Agent: unix
Published: 10/3/2024
Updated: 10/3/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.0
CVSS v2
Risk Factor: Medium
Base Score: 5.2
Temporal Score: 3.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:C
CVSS Score Source: CVE-2024-20506
CVSS v3
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 5.3
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:clamav, p-cpe:/a:amazon:linux:clamav-data, p-cpe:/a:amazon:linux:clamav-debuginfo, p-cpe:/a:amazon:linux:clamav-devel, p-cpe:/a:amazon:linux:clamav-filesystem, p-cpe:/a:amazon:linux:clamav-lib, p-cpe:/a:amazon:linux:clamav-milter, p-cpe:/a:amazon:linux:clamav-update, p-cpe:/a:amazon:linux:clamd, p-cpe:/a:amazon:linux:clamav-doc
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 9/25/2024
Vulnerability Publication Date: 9/4/2024
Reference Information
CVE: CVE-2024-20505, CVE-2024-20506
IAVB: 2024-B-0134