Amazon Linux AMI : clamav (ALAS-2019-1146)

Medium Nessus Plugin ID 121131

Synopsis

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

Description

An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.(CVE-2018-14681)

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha.
There is an off-by-one error in the TOLOWER() macro for CHM decompression.(CVE-2018-14682)

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha.
It does not reject blank CHM filenames.(CVE-2018-14680)

A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the 'unmew11()' function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.(CVE-2018-15378)

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha.
There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).(CVE-2018-14679)

Solution

Run 'yum update clamav' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2019-1146.html

Plugin Details

Severity: Medium

ID: 121131

File Name: ala_ALAS-2019-1146.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2019/01/14

Updated: 2019/01/14

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

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

CVSS v3.0

Base Score: 8.8

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

Vulnerability Information

CPE: 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: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, cpe:/o:amazon:linux

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

Patch Publication Date: 2019/01/12

Reference Information

CVE: CVE-2018-14679, CVE-2018-14680, CVE-2018-14681, CVE-2018-14682, CVE-2018-15378

ALAS: 2019-1146