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Improper Access Control Affecting cups-libs package, versions <1:1.6.3-51.el7

Severity

 Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.47% (76th percentile)

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  • Snyk IDSNYK-RHEL7-CUPSLIBS-1528284
  • published26 Jul 2021
  • disclosed16 Feb 2018
Report a new vulnerability Found a mistake?

Introduced: 16 Feb 2018

CVE-2017-18190  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade RHEL:7 cups-libs to version 1:1.6.3-51.el7 or higher.
This issue was patched in RHSA-2020:3864.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cups-libs package and not the cups-libs package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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).