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Amazon Linux 2 : libmspack (ALAS-2019-1152)

high Nessus Plugin ID 121365

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

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)

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)

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)

Solution

Run 'yum update libmspack' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2019-1152.html

Plugin Details

Severity: High

ID: 121365

File Name: al2_ALAS-2019-1152.nasl

Version: 1.2

Type: local

Agent: unix

Published: 1/25/2019

Updated: 2/20/2020

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libmspack, p-cpe:/a:amazon:linux:libmspack-debuginfo, p-cpe:/a:amazon:linux:libmspack-devel, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/25/2019

Vulnerability Publication Date: 7/28/2018

Reference Information

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

ALAS: 2019-1152