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Amazon Linux AMI : rsync (ALAS-2022-1640)

high Nessus Plugin ID 168597

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Synopsis

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

Description

The version of rsync installed on the remote host is prior to 3.0.6-12.14. It is, therefore, affected by a vulnerability as referenced in the ALAS-2022-1640 advisory.

 An out-of-bounds access flaw was found in zlib, which allows memory corruption when deflating (ex: when compressing) if the input has many distant matches. For some rare inputs with a large number of distant matches (crafted payloads), the buffer into which the compressed or deflated data is written can overwrite the distance symbol table which it overlays. This issue results in corrupted output due to invalid distances, which leads to out-of-bound access, corrupting the memory and potentially crashing the application. (CVE-2018-25032)

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 rsync' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2022-1640.html

https://alas.aws.amazon.com/cve/html/CVE-2018-25032.html

Plugin Details

Severity: High

ID: 168597

File Name: ala_ALAS-2022-1640.nasl

Version: 1.4

Type: local

Agent: unix

Published: 12/10/2022

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: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2018-25032

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:rsync, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:rsync-debuginfo

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: 12/1/2022

Vulnerability Publication Date: 3/25/2022

Reference Information

CVE: CVE-2018-25032