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

high Nessus Plugin ID 141996
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The version of tested product installed on the remote host is prior to tested version. 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)

- A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra. An attacker in a privileged network position may be able to execute arbitrary code. (CVE-2019-8675, CVE-2019-8696)

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 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: 1.3

Type: local

Agent: unix

Published: 10/28/2020

Updated: 11/2/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-8696

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known 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