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Amazon Linux 2 : cups (ALAS-2020-1506)

high Nessus Plugin ID 141996

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Synopsis

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

Description

The version of cups installed on the remote host is prior to 1.6.3-51. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1506 advisory.

 A localhost.localdomain whitelist entry in valid_host() in scheduler/client.c in CUPS before 2.2.2 allows remote attackers to execute arbitrary IPP commands by sending POST requests to the CUPS daemon in conjunction with DNS rebinding. The localhost.localdomain name is often resolved via a DNS server (neither the OS nor the web browser is responsible for ensuring that localhost.localdomain is 127.0.0.1).
 (CVE-2017-18190)

 Stack-buffer-overflow in libcups's asn1_get_type function. (CVE-2019-8675)

 Stack-buffer-overflow in libcups's asn1_get_packed function. (CVE-2019-8696)

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 'yum update cups' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1506.html

https://access.redhat.com/security/cve/CVE-2017-18190

https://access.redhat.com/security/cve/CVE-2019-8675

https://access.redhat.com/security/cve/CVE-2019-8696

Plugin Details

Severity: High

ID: 141996

File Name: al2_ALAS-2020-1506.nasl

Version: 1.5

Type: local

Agent: unix

Published: 10/28/2020

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2019-8696

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:cups-libs, p-cpe:/a:amazon:linux:cups-ipptool, p-cpe:/a:amazon:linux:cups-debuginfo, p-cpe:/a:amazon:linux:cups-lpd, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:cups-filesystem, p-cpe:/a:amazon:linux:cups-devel, p-cpe:/a:amazon:linux:cups-client, p-cpe:/a:amazon:linux:cups

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: 10/22/2020

Vulnerability Publication Date: 2/16/2018

Reference Information

CVE: CVE-2017-18190, CVE-2019-8675, CVE-2019-8696

ALAS: 2020-1506