Amazon Linux 2 : libarchive (ALAS-2020-1391)

high Nessus Plugin ID 133555

Synopsis

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

Description

The version of libarchive installed on the remote host is prior to 3.1.2-14. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2020-1391 advisory.

archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive before 3.4.0 has a use-after-free in a certain ARCHIVE_FAILED situation, related to Ppmd7_DecodeSymbol. (CVE-2019-18408)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update libarchive' to update your system.

See Also

https://access.redhat.com/security/cve/CVE-2019-18408

https://alas.aws.amazon.com/AL2/ALAS-2020-1391.html

Plugin Details

Severity: High

ID: 133555

File Name: al2_ALAS-2020-1391.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2/10/2020

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-18408

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libarchive-debuginfo, p-cpe:/a:amazon:linux:libarchive-devel, p-cpe:/a:amazon:linux:bsdtar, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:libarchive, p-cpe:/a:amazon:linux:bsdcpio

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/8/2020

Vulnerability Publication Date: 10/24/2019

Reference Information

CVE: CVE-2019-18408

ALAS: 2020-1391