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Amazon Linux 2 : gzip, xz (ALAS-2022-1782)

high Nessus Plugin ID 160262

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Synopsis

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

Description

The version of gzip installed on the remote host is prior to 1.5-10. The version of xz installed on the remote host is prior to 5.2.2-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1782 advisory.

 An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system. (CVE-2022-1271)

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 gzip' to update your system.
 Run 'yum update xz' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2022-1782.html

https://alas.aws.amazon.com/cve/html/CVE-2022-1271.html

Plugin Details

Severity: High

ID: 160262

File Name: al2_ALAS-2022-1782.nasl

Version: 1.7

Type: local

Agent: unix

Published: 4/27/2022

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: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2022-1271

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/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:gzip-debuginfo, p-cpe:/a:amazon:linux:gzip, p-cpe:/a:amazon:linux:xz, p-cpe:/a:amazon:linux:xz-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:xz-compat-libs, p-cpe:/a:amazon:linux:xz-devel, p-cpe:/a:amazon:linux:xz-libs, p-cpe:/a:amazon:linux:xz-lzma-compat

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/25/2022

Vulnerability Publication Date: 4/19/2022

Reference Information

CVE: CVE-2022-1271

ALAS: 2022-1782

IAVA: 2024-A-0327