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Amazon Linux 2022 : bsdcat, bsdcpio, bsdtar (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)

 A use-after-free flaw was found in libarchive in the copy_string function. (CVE-2021-36976)

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 '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: 1.3

Type: local

Agent: unix

Published: 9/7/2022

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: 5.9

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