USN-3577-1: CUPS vulnerability

Releases

• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• 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 versions:

Ubuntu 16.04

• cups - 2.1.3-4ubuntu0.4

Ubuntu 14.04

• cups - 1.7.2-0ubuntu1.9

In general, a standard system update will make all the necessary changes.

References

• CVE-2017-18190