USN-3577-1: CUPS vulnerability
Ubuntu Security Notice USN-3577-1
20th February, 2018
cups vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
CUPS could be made to provide access to printers over the network.
Software description
- cups
– Common UNIX Printing System(tm)
Details
Jann Horn discovered that CUPS permitted HTTP requests with the Host
header set to "localhost.localdomain" from the loopback interface. If a
user were tricked in to opening a specially crafted website in their web
browser, an attacker could potentially exploit this to obtain sensitive
information or control printers, via a DNS rebinding attack.
(CVE-2017-18190)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.04 LTS:
-
cups
2.1.3-4ubuntu0.4
- Ubuntu 14.04 LTS:
-
cups
1.7.2-0ubuntu1.9
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-3577-1: CUPS vulnerability
