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Amazon Linux 2022 : (ALAS2022-2022-059)

high Nessus Plugin ID 164776

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Synopsis

The remote Amazon Linux 2022 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-059 advisory.

 - An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system. (CVE-2021-31566)

 - libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block). (CVE-2021-36976)

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

Solution

Run 'dnf update --releasever=2022.0.20220504 libarchive' to update your system.

See Also

https://alas.aws.amazon.com/AL2022/ALAS-2022-059.html

https://alas.aws.amazon.com/cve/html/CVE-2021-31566.html

https://alas.aws.amazon.com/cve/html/CVE-2021-36976.html

Plugin Details

Severity: High

ID: 164776

File Name: al2022_ALAS2022-2022-059.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/7/2022

Updated: 9/7/2022

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-36976

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/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

CVSS Score Source: CVE-2021-31566

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:bsdcat-debuginfo, p-cpe:/a:amazon:linux:libarchive-debuginfo, p-cpe:/a:amazon:linux:libarchive-devel, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:libarchive-debugsource, p-cpe:/a:amazon:linux:bsdcat, p-cpe:/a:amazon:linux:bsdtar, p-cpe:/a:amazon:linux:libarchive, p-cpe:/a:amazon:linux:bsdcpio-debuginfo, p-cpe:/a:amazon:linux:bsdcpio, p-cpe:/a:amazon:linux:bsdtar-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/4/2022

Vulnerability Publication Date: 7/20/2021

Reference Information

CVE: CVE-2021-31566, CVE-2021-36976