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Amazon Linux 2 : zlib (ALAS-2022-1849)

critical Nessus Plugin ID 165996

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Synopsis

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

Description

The version of zlib installed on the remote host is prior to 1.2.7-19. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1849 advisory.

 - zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference). (CVE-2022-37434)

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 zlib' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2022-1849.html

https://alas.aws.amazon.com/cve/html/CVE-2022-37434.html

Plugin Details

Severity: Critical

ID: 165996

File Name: al2_ALAS-2022-1849.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/10/2022

Updated: 10/10/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2022-37434

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:minizip-devel, p-cpe:/a:amazon:linux:zlib, p-cpe:/a:amazon:linux:zlib-static, p-cpe:/a:amazon:linux:zlib-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:minizip, p-cpe:/a:amazon:linux:zlib-devel

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/15/2022

Vulnerability Publication Date: 8/5/2022

Reference Information

CVE: CVE-2022-37434