CVE-2017-18190

Published: 16 February 2018

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).

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
cups
Launchpad, Ubuntu, Debian
Upstream
Released (2.2.2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(2.2.6-5)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2.1.3-4ubuntu0.4)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [1.7.2-0ubuntu1.9])
Patches:
Upstream: https://github.com/apple/cups/commit/afa80cb2b457bf8d64f775bed307588610476c41