Amazon Linux 2023 : gzip (ALAS2023-2023-043)

high Nessus Plugin ID 173162

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-043 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)

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

Solution

Run 'dnf update gzip --releasever=2023.0.20230222 ' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-043.html

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

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: High

ID: 173162

File Name: al2023_ALAS2023-2023-043.nasl

Version: 1.0

Type: local

Agent: unix

Published: 3/21/2023

Updated: 3/21/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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, p-cpe:/a:amazon:linux:gzip-debuginfo, p-cpe:/a:amazon:linux:gzip-debugsource, cpe:/o:amazon:linux:2023

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2023

Vulnerability Publication Date: 4/19/2022

Reference Information

CVE: CVE-2022-1271