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Amazon Linux AMI : clamav (ALAS-2020-1433)

medium Nessus Plugin ID 140612

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of clamav installed on the remote host is prior to 0.102.4-1.44. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1433 advisory.

 Fixed a vulnerability in the ARJ archive-parsing module in ClamAV 0.102.3 that could cause a denial-of- service (DoS) condition. Improper bounds checking resulted in an out-of-bounds read that could cause a crash. The previous fix for this CVE in version 0.102.3 was incomplete. This fix correctly resolves the issue. (CVE-2020-3327)

 Fixed a vulnerability a malicious user could exploit to replace a scan target directory with a symlink to another path to trick clamscan, clamdscan, or clamonacc into removing or moving a different file (such as a critical system file). The issue would affect users that use the --move or --remove options for clamscan, clamdscan and clamonacc. (CVE-2020-3350)

 Fixed a vulnerability in the EGG archive module in ClamAV 0.102.0 - 0.102.3 that could cause a denial-of- service (DoS) condition. Improper error handling could cause a crash due to a NULL pointer dereference.
 This vulnerability is mitigated for those using the official ClamAV signature databases because the file type signatures in daily.cvd will not enable the EGG archive parser in affected versions. (CVE-2020-3481)



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/ALAS-2020-1433.html

https://access.redhat.com/security/cve/CVE-2020-3327

https://access.redhat.com/security/cve/CVE-2020-3350

https://access.redhat.com/security/cve/CVE-2020-3481

Plugin Details

Severity: Medium

ID: 140612

File Name: ala_ALAS-2020-1433.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/16/2020

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2020-3350

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:clamav-milter, p-cpe:/a:amazon:linux:clamav-lib, p-cpe:/a:amazon:linux:clamav-devel, p-cpe:/a:amazon:linux:clamav-update, p-cpe:/a:amazon:linux:clamav, p-cpe:/a:amazon:linux:clamav-data, p-cpe:/a:amazon:linux:clamav-db, p-cpe:/a:amazon:linux:clamav-debuginfo, p-cpe:/a:amazon:linux:clamd, p-cpe:/a:amazon:linux:clamav-filesystem, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/14/2020

Vulnerability Publication Date: 5/13/2020

Reference Information

CVE: CVE-2020-3327, CVE-2020-3350, CVE-2020-3481

ALAS: 2020-1433