CVE-2020-8933

Name	CVE-2020-8933
Description	A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role "roles/compute.osLogin" to escalate privileges to root. Using the membership to the "lxd" group, an attacker can attach host devices and filesystems. Within an lxc container, it is possible to attach the host OS filesystem and modify /etc/sudoers to then gain administrative privileges. All images created after 2020-May-07 (20200507) are fixed, and if you cannot update, we recommend you edit /etc/group/security.conf and remove the "lxd" user from the OS Login entry.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	987353

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
google-compute-image-packages (PTS)	buster	20190124-3	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
google-compute-image-packages	source	(unstable)	(unfixed)			987353

Notes

[buster] - google-compute-image-packages <ignored> (Minor issue)
https://cloud.google.com/compute/docs/security-bulletins#2020619
https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29