Insufficient restriction of IPP filters in CUPS in Google Chrome OS prior to 62.0.3202.74 allowed a remote attacker to execute a command with the same privileges as the cups daemon via a crafted PPD file, aka a printer zeroconfig CRLF issue.
https://www.debian.org/security/2018/dsa-4243
https://security.gentoo.org/glsa/201908-08
https://chromereleases.googleblog.com/2017/10/stable-channel-update-for-chrome-os_27.html